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Okeanos Aggressor, Costa Rica

Rating 8.7 out of 10 8.7 Fabulous

“Food was excellent and the level of service on the boat and when diving was fantastic. ”

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
  • Robert H
  • Flag of Sweden Sweden

A unique diving experince

Definitely our encounter with the dolphins, I've seen dolphins during dives before but they've never sticked around this long or come up this close before, it was amazing! Such beautiful and intelligent beings:D The big schools of hammerheads were really cool too!

Recommended for
The dive sites, small group, lots of hammerheads!
  • 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 10 out of 10
  • 10 Exceptional
  • Thomas R
  • Flag of Germany Germany

Nice dive trip in a relaxed atmosphere

A spectacular dive with a baitball and hunting sharks, dolphins, tunas ect..Another great dive with a pack of mating marble rays.Shore leave to a viewpoint on the island with spectacular views.

Recommended for
Great crew, the nature and wildlife of the Cocos Islands, the food and the free drinks on the boat!
Translated from German
  • Rating 7.6 out of 10
  • 7.6 Good
  • Annie B
  • Flag of Canada Canada

Introduction of Costa Rica diving

The interaction with the giants mantas rays was incredible

Recommended for
The giant mantas rays, The crew and the island

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