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Okeanos Aggressor, Costa Rica

Rating 8.7 out of 10 8.7 Fabulous

“It was January so we didn’t see large schools of hammerheads but we did see plenty of them, and tigers and even mantas and silver …”

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 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 8.4 out of 10
  • 8.4 Very good
  • Annie B
  • Flag of Canada Canada

Unforgettable

All dive were incredible ! The schools of hammerhead, the Tigers sharks, galapagos, silky sharks and i had multiple interactions with 2 frogs fish! Amazing

Recommended for
The sharks, the crew, the beauty of the ocean
  • Rating 9.6 out of 10
  • 9.6 Exceptional
  • luis manuel A
  • Flag of Spain Spain

Best diving so far.

Had a blast!!

Recommended for
friendly crew, New diving friends, Whale shark!!
  • 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
  • Rating 8.8 out of 10
  • 8.8 Fabulous
  • Paula B
  • Flag of Germany Germany

Beautiful liveaboard with top service

manta ray White tip reef sharkBarbecue on the dream beach Nice people

Recommended for
Barbecue on the beach, manta rays, service on board
Translated from German

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