Okeanos Aggressor

Costa Rica

10 Cabins
Gear Rental
Renovated in 2016
Built in 2008

We like to highlight

  • Can accommodate up to 22 guests in 10 cabins
  • 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
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Boat Description

Okeanos Aggressor is a luxury liveaboard operating within Costa Rica. In 10 staterooms, she accommodates 22 guests in 2 twins, 7 deluxe (double + single) and 1 quad. All have ensuites, climate control and porthole. The social areas of the ship include the indoor salon which has a restaurant style dining area and spacious sofa area. There is also a small library and computer nook. The sundeck is partially covered and offers access to sun loungers, hammocks, jacuzzi, bar and stereo, so you can enjoy your music and a drink as the sun goes down. The dive deck has personal gear lockers, a large swim platform, camera table with low pressure hoses and showers. Cocos Island is a remote destination that is highly prized within the diving community for its spectacular diversity. These challenging dives offer the chance to witness spectacles like whale sharks and hundreds of schooling hammerhead sharks. Huge underwater pinnacles and exhilarating drift dives will also earn you sightings of mantas, eagle rays, frogfish, sailfish and marlin.

Diving Services


  • 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
  • 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

  • 25% of the total booking amount is due at the time of booking and 75% (balance) is due 70 days prior to arrival.
  • 100% cancellation fee of contracted room rate for cancellation received 60 days or less prior to date of arrival.
  • 100% cancellation fee of contracted room rate for cancellation received 45 days or less prior to date of arrival.
  • 100% cancellation fee of contracted room rate for cancellation received 30 days or less prior to date of arrival.


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

Dive Insurance, Chamber Fees (30 USD per trip), National Park Fees (350-490 USD per trip), Port Fees.

Optional Extras

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