Sirena — Deck Plans, Live Tracker, Dining & Videos

Sirena is a R Class cruise ship operated by Oceania Cruises. She entered service in 1999, measures 30,277 gross tons, and carries approximately 684 guests at double occupancy with a crew of 400.

Quick Answer: Sirena is an R Class Oceania ship — 30,277 GT, 684 guests, originally launched in 1999. The newest addition to the R Class fleet, she joined Oceania after service with another line and was refurbished to match her sisters. This page covers deck plans, live tracking, dining venues, and videos.

Who She's For: Intimate-ship travelers who want Oceania's culinary quality on a 684-guest vessel. Sirena suits cruisers who value small-ship access to unique ports and the personal attention that comes with fewer than 700 guests.

Sirena is the fourth R Class sister, joining Oceania later than the original trio (Regatta, Insignia, Nautica). She offers the same intimate experience — Toscana and Polo Grill included, relaxed atmosphere, no formal nights. At 684 guests she accesses smaller ports that the larger Oceania and Allura Class ships cannot reach. The choice between R Class sisters is purely about itinerary. If you want more dining variety, the Oceania Class (Marina, Riviera) or Allura Class (Vista, Allura) carry roughly twice the guests with more restaurants.