Details

10 Night Mediterranean Cruise

Cruise LineOceania Cruises

ShipNautica

DepartsSat, Apr 11th 2026

ReturnsTue, Apr 21st 2026

Nights10

Departing PortLisbon

Ports of CallLisbon, Portimao, Seville, Tangier, Gibraltar, Malaga, Cartagena, Alicante, Ibiza, Palma de Mallorca, Spanish Isle, Barcelona

The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Nautica offers every luxury you may expect on board one of Oceania's stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, their 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and stater…

10 Night Alaska Cruise

Cruise LineOceania Cruises

ShipRiviera

DepartsMon, May 25th 2026

ReturnsThu, Jun 4th 2026

Nights10

Departing PortSeattle

Ports of CallSeattle, Ketchikan, Sitka, Icy Strait Point, Juneau, Holkham Bay Glacier Fjords, Wrangell, Victoria, Vancouver

Ideally proportioned, Riviera still embraces the same warmth and charm of renowned Regatta, Insignia, Nautica and Sirena. While the impeccable level of personalised service and the country club casual ambiance remain the same, Riviera offers even more choices, as well as generous new amenities. Designed with the ultimate epicurean and travel connoisseur in mind, Riviera offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve by offers enlightening seminars, tastings, and gourmet food pairings. Riviera also features The Culinary Centre, the only hands-on cooking school at sea which features a range of cooking classes by master chefs. In the Artist Loft, talented artists-in-residence offer step-by-step instruction in everything from photography to painting to printmaking. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and fresh pastries made daily. Intimate spaces throughout the ship provide relaxing escapes. Spacious accommodations in every category showcase luxurious designer touches and lavish bathrooms.Notably, the onboard experience continues to exude that comfortable familiarity guests have come to cherish. They have retained everything guests appreciate about their ships and continue to aim even higher.  Ideally proportioned, Riviera still embraces the same warmth and charm of renowned Regatta, Insignia, Nautica and Sirena. While the impeccable level of personalised service and the country club casual ambiance remain the same, Riviera offers even more cho…

16 Night Southeast Asia Cruise

Cruise LineOceania Cruises

ShipRegatta

DepartsWed, Apr 15th 2026

ReturnsFri, May 1st 2026

Nights16

Departing PortTokyo

Ports of CallTokyo, Kagoshima, Taipei, Hong Kong (Victoria Harbor), Hanoi (Ha Long Bay), Nha Trang, Ho Chi Minh City (2 Days), Koh Samui, Singapore

The acclaimed Regatta has undergone a multimillion-dollar transformation to create a virtually new ship. Sleek and elegantly charming, Regatta is the flagship of the Oceania Cruises fleet. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Regatta offers every luxury you may expect on board one of Oceania's stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, the 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Regatta has undergone a multimillion-dollar transformation to create a virtually new ship. Sleek and elegantly charming, Regatta is the flagship of the Oceania Cruises fleet. Her decks are resplendent in the finest teak, custom stone and til…

11 Night European Coast Cruise

Cruise LineOceania Cruises

ShipSirena

DepartsFri, Apr 24th 2026

ReturnsTue, May 5th 2026

Nights11

Departing PortLisbon

Ports of CallLisbon, Oporto (Porto), Funchal, Madeira, Santa Cruz de la Palma, Fuerteventura, Agadir, Casablanca, Seville, Granada, Alicante, Barcelona

15 Night Southeast Asia Cruise

Cruise LineOceania Cruises

ShipSirena

DepartsFri, Feb 6th 2026

ReturnsSat, Feb 21st 2026

Nights15

Departing PortHong Kong (Victoria Harbor)

Ports of CallHong Kong (Victoria Harbor) (2 Days), Halong Bay (2 Days), Da Nang (2 Days), Ho Chi Minh City (2 Days), Singapore, Koh Samui, Bangkok (2 Days)

9 Night Alaska Cruise

Cruise LineOceania Cruises

ShipRiviera

DepartsTue, Sep 9th 2025

ReturnsThu, Sep 18th 2025

Nights9

Departing PortSeattle

Ports of CallSeattle, Ketchikan, Juneau, Skagway, Sitka, Victoria, Seattle

Ideally proportioned, Riviera still embraces the same warmth and charm of renowned Regatta, Insignia, Nautica and Sirena. While the impeccable level of personalised service and the country club casual ambiance remain the same, Riviera offers even more choices, as well as generous new amenities. Designed with the ultimate epicurean and travel connoisseur in mind, Riviera offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve by offers enlightening seminars, tastings, and gourmet food pairings. Riviera also features The Culinary Centre, the only hands-on cooking school at sea which features a range of cooking classes by master chefs. In the Artist Loft, talented artists-in-residence offer step-by-step instruction in everything from photography to painting to printmaking. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and fresh pastries made daily. Intimate spaces throughout the ship provide relaxing escapes. Spacious accommodations in every category showcase luxurious designer touches and lavish bathrooms.Notably, the onboard experience continues to exude that comfortable familiarity guests have come to cherish. They have retained everything guests appreciate about their ships and continue to aim even higher.  Ideally proportioned, Riviera still embraces the same warmth and charm of renowned Regatta, Insignia, Nautica and Sirena. While the impeccable level of personalised service and the country club casual ambiance remain the same, Riviera offers even more cho…

22 Night Panama Canal Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsSat, Nov 29th 2025

ReturnsSun, Dec 21st 2025

Nights22

Departing PortMiami

Ports of CallMiami, Cozumel, Puerto Costa Maya, Mexico, Belize City, Harvest Caye, Santo Tomas de Castilla, Roatan, Puerto Limon, Transiting The Panama Canal, Enter Panama Canal Balboa (2 Days), Manta, Guayaquil, Salaverry, Lima (Callao), Coquimbo, San Antonio (2 Days)

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

11 Night Canada - New England Cruise

Cruise LineOceania Cruises

ShipInsignia

DepartsSat, Sep 13th 2025

ReturnsWed, Sep 24th 2025

Nights11

Departing PortNew York City

Ports of CallNew York City, Newport, Boston, Bar Harbor, St. John, Halifax, Sydney, Corner Brook, Saguenay, Québec, Montreal (2 Days)

The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Insignia offers every luxury you may expect on board one of our stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, the 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and state…

20 Night Antarctica Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsSun, Dec 21st 2025

ReturnsSat, Jan 10th 2026

Nights20

Departing PortSan Antonio

Ports of CallSan Antonio, Puerto Montt, Castro (Chiloe Island), Chile, Puerto Chacabuco, Laguna San Rafael, Darwin Channel- Chilean Fjords CRUISING ONLY (2 Days), Punta Arenas, Ushuaia, Drake Passage, Antarctic Peninsula (3 Days), Port Stanley, Puerto Madryn, Buenos Aires

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

12 Night European Coast Cruise

Cruise LineOceania Cruises

ShipNautica

DepartsSun, Jul 12th 2026

ReturnsFri, Jul 24th 2026

Nights12

Departing PortMonte Carlo

Ports of CallMonte Carlo, Saint-Tropez, Marseille, Barcelona, Palma de Mallorca, Spanish Isle, Cartagena, Malaga, Gibraltar, Tangier, Seville, Portimao, Lisbon (2 Days)

The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Nautica offers every luxury you may expect on board one of Oceania's stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, their 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and stater…

15 Night Southeast Asia Cruise

Cruise LineOceania Cruises

ShipRegatta

DepartsSun, Jan 25th 2026

ReturnsMon, Feb 9th 2026

Nights15

Departing PortSingapore

Ports of CallSingapore (2 Days), Koh Samui, Bangkok (2 Days), Sihanoukville, Ho Chi Minh City (2 Days), Chan May, Hanoi (Ha Long Bay) (2 Days), Hong Kong (Victoria Harbor)

The acclaimed Regatta has undergone a multimillion-dollar transformation to create a virtually new ship. Sleek and elegantly charming, Regatta is the flagship of the Oceania Cruises fleet. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Regatta offers every luxury you may expect on board one of Oceania's stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, the 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Regatta has undergone a multimillion-dollar transformation to create a virtually new ship. Sleek and elegantly charming, Regatta is the flagship of the Oceania Cruises fleet. Her decks are resplendent in the finest teak, custom stone and til…

12 Night Caribbean Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsThu, Dec 10th 2026

ReturnsTue, Dec 22nd 2026

Nights12

Departing PortMiami

Ports of CallMiami, Charlotte Amalie, Gustavia, St. John's, Fort de France, Basseterre, Philipsburg, Tortola, Miami

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

11 Night European Coast Cruise

Cruise LineOceania Cruises

ShipInsignia

DepartsFri, Sep 11th 2026

ReturnsTue, Sep 22nd 2026

Nights11

Departing PortTilbury

Ports of CallTilbury, Ijmuiden, Edinburgh (Leith), Aberdeen, Lerwick Shetland Island, Portree, Belfast, Northern Ireland, Dublin, Paris (2 Days)

The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Insignia offers every luxury you may expect on board one of our stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, the 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and state…

10 Night North Europe Cruise

Cruise LineOceania Cruises

ShipInsignia

DepartsTue, Jul 14th 2026

ReturnsFri, Jul 24th 2026

Nights10

Departing PortReykjavik

Ports of CallReykjavik, Grundarfjordur, Isafjordur, Akureyri, Seydisfjordur, Djupivogur, Torshavn (2 Days), Heimaey, Reykjavik

The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Insignia offers every luxury you may expect on board one of our stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, the 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Insignia has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and state…

14 Night European Coast Cruise

Cruise LineOceania Cruises

ShipNautica

DepartsThu, Jun 11th 2026

ReturnsThu, Jun 25th 2026

Nights14

Departing PortLisbon

Ports of CallLisbon, Portimao, Malaga, Alicante, Barcelona, Civitavecchia (Rome), Sorrento, Messina, Valletta, Kotor, Dubrovnik, Zadar, Venice

The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and staterooms boast luxurious, neo-classical furnishings. Nautica offers every luxury you may expect on board one of Oceania's stylish ships. She features four unique, open-seating restaurants, a world-class fitness centre and spa, eight lounges and bars, a casino and 342 lavish suites and luxurious staterooms, nearly 70% of which feature private verandas. With just 684 guests to pamper, their 400 professionally trained European staff ensure you will wait for nothing. The acclaimed Nautica has undergone a multimillion-dollar transformation to create a virtually new ship that is both sleek and elegantly charming. Her decks are resplendent in the finest teak, custom stone and tile work, and her lounges, suites and stater…

21 Night South American Coast Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsTue, Mar 17th 2026

ReturnsTue, Apr 7th 2026

Nights21

Departing PortRio de Janeiro

Ports of CallRio de Janeiro (2 Days), Recife, Macapa, Alter do Chao, Boca de Valeria, Manaus (2 Days), Parintins, Santarem, Macapa, Castries, Basseterre, Miami

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

20 Night Africa - Middle East - India Cruise

Cruise LineOceania Cruises

ShipSirena

DepartsWed, Mar 11th 2026

ReturnsTue, Mar 31st 2026

Nights20

Departing PortBombay (Mumbai)

Ports of CallBombay (Mumbai), Male (2 Days), Mahe Island, Nosy Be / Komba, Mayotte Island, Maputo, Richard's Bay, Durban, Cape Town (2 Days)

11 Night North Europe Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsFri, Sep 4th 2026

ReturnsTue, Sep 15th 2026

Nights11

Departing PortSouthampton

Ports of CallSouthampton, London (Tower Bridge), Uk, Edinburgh (Leith), Aberdeen, Invergordon, Stornoway, Portree, Londonderry, Glasgow, Douglas, Isle Of Man, Uk, Belfast, Northern Ireland

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

14 Night European Coast Cruise

Cruise LineOceania Cruises

ShipMarina

DepartsTue, Apr 28th 2026

ReturnsTue, May 12th 2026

Nights14

Departing PortCivitavecchia (Rome)

Ports of CallCivitavecchia (Rome), La Spezia, Cinque Terre, Saint-Tropez, Barcelona, Malaga, Seville, Casablanca, Agadir, Arrecife, Santa Cruz de Tenerife, Santa Cruz de la Palma, Funchal, Madeira, Lisbon

Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and some enticing new amenities. Designed for epicureans and travel connoisseurs, Marina offers guests multiple dining venues, of which six are open-seating gourmet restaurants with no surcharge. La Reserve offers enlightening seminars, tastings, and gourmet food pairings. The Culinary Centre is the only hands-on cooking school at sea, featuring a range of enriching cooking classes by master chefs. Similarly, talented artists-in-residence offer step-by-step instruction in arts and crafts in Artist Loft enrichment centre. Baristas, Oceania's signature coffee bar, serves up illy® espresso and coffee and freshly made pastries. Intimate lounges abound. Accommodations in every category are incredibly spacious, especially with regard to the lavish bathrooms.Yet remarkably, with so many additions, the onboard ambiance and experience remains comfortably familiar. They have retained everything their guests adore about their ships and raised the bar even higher.  Intimate and luxurious, Marina retains the same warmth and charm of her acclaimed consorts Regatta, Insignia, Nautica and Sirena. While the country club casual ambiance and level of personalised service remain the same, Marina offers even more choice and …

14 Night European Coast Cruise

Cruise LineOceania Cruises

ShipSirena

DepartsThu, Aug 27th 2026

ReturnsThu, Sep 10th 2026

Nights14

Departing PortIstanbul

Ports of CallIstanbul (2 Days), Izmir, Santorini, Rhodes, Iraklion (Heraklion), Crete, Dubrovnik, Kotor, Saranda, Katakolon, Taormina, Sorrento, Civitavecchia (Rome)