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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 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
  • 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
  • Michael P
  • Flag of United States United States

Worth waiting 49 years of diving for the beginning to the end perfect trip!

The Crew set the attitude for a great trip full of fun, cooperation, scheduling, excitement, experience and safe diving!

Recommended for
The Crew, Sea life and the Crew!
  • Rating 8.8 out of 10
  • 8.8 Fabulous
  • Stephen B
  • Flag of United Kingdom United Kingdom

Less hammerheads, great service

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 tips. Food was excellent and the level of service on the boat and when diving was fantastic. All the staff were great. Dived a variety of sites. I thoroughly enjoyed the experience.

Recommended for
Food, staff and diving
  • 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.

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