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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 / 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 10 out of 10
  • 10 Exceptional
  • Felix F
  • Flag of United States United States

Extraordinary

Everything was perfect

Recommended for
The crew, the dive sites, the food
  • Rating 10 out of 10
  • 10 Exceptional
  • George S
  • Flag of United States United States

Great crew, great food, beautiful dives

Every dive was a shark dive, and we got to see a variety of these majestic creatures every day. We also took shore trips to bathe in rivers and waterfalls. Every meal was nutritious and gourmet, with just the sorts of food needed to sustain diving.

Recommended for
Beautiful dives/setting, quality of food, professionalism of crew
  • Rating 8.4 out of 10
  • 8.4 Very good
  • Anette S
  • Flag of Norway Norway

magical diving in Cocos island

My reason to go to Cocos island was to see sharks. I saw a lot of them, mainly hammerhead sharks, whittip sharks and some tiger sharks. The hole experience was amazing. Thanks to the chef who prepared delicious food every day.

Recommended for
Food, Crew and diving spots
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • Nathan W
  • Flag of United States United States

Incredible experience only matched by the incredible staff on board.

Seeing the hammerheads up close, a whale shark and swimming with the dolphins. The vibe was super positive with the staff and other guests on the trip so not a bad way to spend 10 days stuck on a boat together.

Recommended for
Diving, staff friendliness and food

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