Oceania
Oceania Sirena
Oceania Sirena is a 30,277-ton, 337-cabin ship built in 1999, one of three near-identical sisters in the fleet. At 594 feet she is one of the smallest ships Oceania sails, with a fare that includes specialty dining, gratuities and Wi-Fi.
On this page
Ship specs
- Cruise line: Oceania
- Year launched: 1999
- Gross tonnage: 30,277 GT
- Length: 594 ft
- Passengers (double occupancy): Not published
About Oceania Sirena
Oceania Sirena is a 30,277-ton, 337-cabin ship built in 1999, one of three near-identical sisters in the fleet. At 594 feet she is one of the smallest ships Oceania sails, with a fare that includes specialty dining, gratuities and Wi-Fi. Cabins run from 160 sq ft Inside Staterooms to 1,000 sq ft Owner's Suites.
Best for: Food-focused couples and solo travelers who want a small ship, long port-rich itineraries and a relaxed dress code, without paying for an all-inclusive line. New bookings are adults-only (18 and up).
Key features and highlights
- ▸Small scale: 337 suites and staterooms on a 594-ft hull.
- ▸Your World Included fare: specialty dining, shipboard gratuities and Wi-Fi come with every booking.
- ▸Inside Staterooms start at 160 sq ft, and the Owner's Suites reach 1,000 sq ft.
- ▸Specialty restaurants Polo Grill and Toscana carry no surcharge.
What to know before you book
Cabin tips
Oceanview Staterooms run 143-165 sq ft. For most people the sweet spot is a Veranda Stateroom (216 sq ft), which adds a private veranda. The 160 sq ft Inside Staterooms are the budget pick. For real space, the Vista Suite (786 sq ft) and Owner's Suite (1,000 sq ft) are the top cabins, and the Penthouse Suite (322 sq ft) is the entry-level suite.
Dining
Specialty dining carries no surcharge on Oceania, which folds it into the Your World Included fare. The Grand Dining Room serves Continental cuisine, Polo Grill is a classic steakhouse and Toscana serves Italian, and both specialty rooms are dinner-only with reservations. Terrace Cafe is the casual buffet, Waves Grill handles poolside lunches and Aquamar Kitchen serves wellness-focused dishes.
Entertainment
Oceania builds the evening around dinner rather than onboard spectacle. New bookings are adults-only (18 and up), and one elegant casual dress code applies all voyage, with no formal nights.
Cabin sizes by category
Interior
| Subcategory | Cabin size | Balcony | Max guests |
|---|---|---|---|
| Inside Stateroom | 160 sq ft | No balcony | Not published |
Oceanview
| Subcategory | Cabin size | Balcony | Max guests |
|---|---|---|---|
| Oceanview Stateroom, Solo Oceanview Stateroom, Deluxe Oceanview Stateroom | 143-165 sq ft | No balcony | Not published |
Balcony
| Subcategory | Cabin size | Balcony | Max guests |
|---|---|---|---|
| Veranda Stateroom, Concierge Level Veranda Stateroom | 216 sq ft | Not published | Not published |
Suite
| Subcategory | Cabin size | Balcony | Max guests |
|---|---|---|---|
| Penthouse Suite, Vista Suite, Owner's Suite | 322-1,000 sq ft | Not published | Not published |
Cabin sizes come from Oceania's own stateroom pages. Sizes may vary by specific stateroom number. Always confirm with the cruise line before booking.
Frequently asked questions
How big is the Oceania Sirena?
What are the cabin sizes on Oceania Sirena?
What class is the Oceania Sirena?
More on Oceania
Other Oceania ships
Travel data researcher and publisher
Caden Sorenson runs Travel Vient, an independent travel research site built on a verified database of airline baggage rules, airport connection times, cruise line policies, and eSIM plans. He built the verification pipeline behind it: each record is read from the company or government page that publishes it (connection times: OAG data via ExpertFlyer), stored with that source link and the sentence it came from, and re-checked on a schedule. He is a senior staff engineer with 15+ years building software, a Computer Science graduate of Utah State University, and based in Logan, Utah.
Figures link to the source they were read from and show the date last checked; some cite a travel publication or aggregator rather than the company.
Sources & verification
- Year launched: https://www.oceaniacruises.com/ships/sirena
- Gross tonnage: https://www.oceaniacruises.com/ships/sirena
- Length: https://www.oceaniacruises.com/ships/sirena
- Cabin dimensions: https://www.oceaniacruises.com/ships/sirena/suites-staterooms
Verified Oct 2026. Ship specs and cabin sizes can change with refurbishments and reconfiguration. Confirm with the cruise line before booking.
If a figure looks wrong, email hello@vient.org, see how we handle corrections, or browse past fixes in our public changelog.