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Okeanos Aggressor, Costa Rica

Rating 8.7 out of 10 8.7 Fabulous

“Clearly, the dives were superb with hammerhead sharks at all the dives! ”

Romain R, Flag of France France

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 per trip), National Park Fees (396-554 USD per 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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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
  • 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 9.2 out of 10
  • 9.2 Superb
  • Asger B
  • Flag of Denmark Denmark

Exelent very high level of service and very frendly staff

Brilliant 100 pct

Recommended for
The captain mr Beco 2 the dive sites 3 the very frendly and helpfull staff and exelent food
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Joy Alan S
  • Flag of Switzerland Switzerland

Fantastic trip to Coco's island

The raw wildlife and nature on Coco's island were stunning. Every night there was a beautiful sunset. Also the service of the staff was incredible! Every time we got out of the water they distributed fresh fruits and towels. During our first dive of the day the staff always checked our rooms and cleaned the toilets. I also liked that they made a video of the whole trip which we could purchase additionally. This was our first liveaboard and we enjoyed it so much! Thank you guys!

Recommended for
The diving was amazing, the staff was friendly and flexible, they gave their best to fulfill one's wishes, and the food was really delicious.
  • Rating 10 out of 10
  • 10 Exceptional
  • martin B
  • Flag of Canada Canada

Fantastic Great trip!

Schools of Hammerheads ,Tiger shark, Galapagos sharks , Biggest lobster i have seen ! Rays, all together we saw over 700 sharks in 21 dives!Roger my Brother and Diving Buddy always Fun when he enters without fins LOL !

Recommended for
Diving Food Staff

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