Okeanos Aggressor II

Costa Rica

11 Cabins
Gear Rental
Renovated in 2016
Built in 2008

We like to highlight

  • Can accommodate up to 22 guests in 11 state rooms
  • Dive trips in Costa Rica to Cocos Island
  • 4 - 10 night itineraries are available
  • The crew speaks English and Spanish

Choose your departure date

Price per trip per person
Error Book now to get this fantastic price. If you book later, there's a chance that cabins will be sold out on our site.

Boat Description

The Okeanos Aggressor II sails Costa Rican waters. She accommodates 22 guests in 11 state rooms - 8 deluxe (double + single bunk), 1 master (double) and 2 suites (1 double, 1 twin). All of these have ensuites, AC and TV. The indoor saloon has restaurant style seating for dining and a small sofa area. The food is a mixture of American and local cuisine. The sun deck has a shaded alfresco dining area, jacuzzi and bar to enjoy, as well as sun loungers for soaking up the sunshine between dives. The diving area has lots of space, a camera table, showers and rinse tanks. Cocos Island has a reputation as being one of the best and most diverse diving destinations in the world, most famous for the large pelagic encounters. Pinnacles, arches and islands as well as some fierce ocean currents bring in large animals like whale sharks, manta rays, marble rays, eagle rays, sailfish, false killer whales, oceanic white tips and the infamous sight of schooling hammerhead sharks.

Diving Services


  • DIN Adaptors
  • Nitrox available
  • Rinse hosts
  • Dive deck
  • Tenders for diving

Languages Spoken

  • English

Boat Amenities

Boat facilities

  • Leisure Deck
  • Shaded diving deck
  • Camera Station
  • Daily housekeeping
  • Audio & video entertainment
  • Library
  • TV in cabins
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Non-Diver (Snorkeler) Friendly
  • Warm Water Showers
  • Photography Station
  • Outdoor Dining
  • Separate rinse for u/w camera
  • Camera room with table and charging point
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms

Onboard payments

  • Visa
  • Mastercard
  • USD
  • EUR
  • GBP

Food and Drink

  • Western Food
  • Local Food
  • Vegetarian Options
  • Buffet style
  • Beer available
  • Selection of wines
  • Snacks All Day
  • Free Wine w/Dinner

If you have specific diet requests you can add this to your special requests on step 2 of the booking form. We advise limiting these requests to religious beliefs or food allergies. The liveaboard serves great food and you will be hungry after a full day of diving!

Gear Rental

  • Full Equipment
  • Nitrox tank
  • Fins
  • Wetsuit
  • Regulator
  • Dive Computer
  • Snorkel equipment

There is diving gear available to rent on this boat. Please provide your rental needs on the booking form. You will need to pay for the rental gear on board of the boat. Show prices

Vessel Layout

Vessel Layout

Fine Prints

Booking process

Select a dive itinerary that suits your date preferencs and a cabin of your choice and enter your personal information. Submit the booking request. Once the booking is processed, you will receive an email notification with all booking details conveniently laid out in PDF.

Payment and cancellation

  • More than 90 days out = 80 % refund
  • Between 90 and 0 days out = 75 % refund
  • Between 91 and 120 days out = 60 % refund
  • Between 91 and 120 days out = 50 % refund
  • Between 120 and 0 days out = 80 % refund
  • Less than 91 days out = no refund


VAT, Hotel Transfer, Alcoholic Beverages, Drinking Water, Soft drinks, Tea & Coffee, Wine with Dinner, Full-Board Meal Plan (All meals), Snacks, Diving Package, Cabin Towels, Complimentary Toiletries, Deck Towels.

Required Extras

Chamber Fees (30 USD), National Park Fees (350-630 USD), Port Fees.

Optional Extras

Dive Insurance, Travel Insurance, Gratuities, Airport Transfer, Extra Dives, Nitrox, Nitrox Course, Rental Gear, Scuba Diving Courses, Snorkel Gear.