Sirena

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.

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.

Best 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.