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Okeanos Aggressor, Costa Rica

Rating 8.7 out of 10 8.7 Fabulous

“I thoroughly enjoyed the experience.”

Stephen B, Flag of United Kingdom United Kingdom

Highlights

  • Dive with Hammerheads, Eagle rays, and Whales at one of the worlds’ top dive destinations - Cocos Island
  • Soft drinks, iced tea, beer, and wine are complimentary
  • Fully kitted dive deck including personal storage lockers, three-tier camera table with low-pressure air hoses and warm freshwater showers

The Okeanos Aggressor I liveaboard schedules year-round trips to Cocos Island, one of the worlds’ top diving destinations. Diving in Costa Rica means the chance to get up close with schooling hammerheads, mantas, whale sharks, tiger sharks, white tip reef sharks, rays, turtles and huge schools of fish. There is a 36-hour crossing to Cocos Island, but divers will be rewarded with incredible diving and big-fish action and up to 24 dives on the 10-night trip are available. The dive deck is spacious and allows ample room for kitting up, personal gear storage and camera equipment. Nitrox is also available for those certified.

Choose your departure date

This liveaboard does not currently have availability online. Please contact us to check availability and rates or browse other liveaboards worldwide
2026
2027
2028

Included: 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 / trip), National Park Fees (396-554 USD / trip), Port Fees.

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

Book now, pay later: You can easily place your booking online. We will then hold the spaces for you and you can confirm with a payment later.

* Extra fees are shown per person.

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Best Price Guaranteed You're getting the lowest rate. We work closely with the boat operators on a daily basis to deliver you the best possible rates. In case you find our rate cheaper somewhere else we will either match it or beat it.

Drawings & Vessel Layouts

#deckplan floorplan

Cabin Types

Okeanos Aggressor Reviews

  • Rating 8.7 out of 10
  • 8.7 Fabulous
  1. Vessel
    7.6
  2. Crew
    9.4
  3. Food
    9.6
  4. Diving
    8.8
  5. Value
    8.2
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Nicholas B
  • Flag of United Kingdom United Kingdom

Okeanos aggressor and cocos rock

Fantastic experience, long way out, but makes it exclusive, fantastic amount of shark encounters, great boat and crew, great food, a must for all serious divers!

Recommended for
Sharks, sharks and what must be the best night dive in the world
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Niklas P
  • Flag of Sweden Sweden

Great diving and great service!

The diving is just great! We made 21 dives, hammerheads on all of them. Many other type of sharks and much more fish life than I expected. The crew was fantastic. They were very helpful and friendly! And the food was excellent, probably the best chef in all Costa Rica!

Recommended for
The diving, the crew and the food.
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Heidi H
  • Flag of United States United States

Diving wirh the sharks was one of the most incredible and rewarding experiences of my life.

Diving with the hammerheads, white tips, and rays. Being in the ocean experiencing and being part of the ecosystem. And feeling safe thanks to Warren and the other dive masters. Also seeing the dolphins surrounding the panga on one of the dives. The food and service was excellent. Muchas Gracias!

Recommended for
The staff service with nitrox refills, donning BCDs and retrieving them at dive sites, and the excellent meals.
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Petra H
  • Flag of Switzerland Switzerland

Extraordinary

The crew was super friendly and helpful. Everyday fresh and super delicious food. The dive sites were selected by the national park, therefore it can happen that you dive several times at the same site but no dive is like another. The dive guides were experienced and taking care of the divers very well.

Recommended for
Crew, Food,

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