Liveaboard.com

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.

Pay by bank transfer or online with

  1. Visa payments
  2. MasterCard payments
  3. Paypal payments
  4. American Express payments
  5. Apple Pay payments
Best Price Guaranteed

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
  • 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 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 9.2 out of 10
  • 9.2 Superb
  • Yann V
  • Flag of France France

Wonderful dives, awesome crew & dive guide, comfortable boat, what more could you ask for?

Diving in the blue with a school of hammerhead sharks, seeing a whale shark at the bend of a reef, excellent moments with the crew, very friendly, helpful, who will do everything to help you make this stay optimal.

Recommended for
Spectacular dives with schools of hammerhead sharks, whale sharks, fantastic crew & dive guide
Translated from French
  • 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

We’re here to help, 24/7.

Connect with our expert travel consultants to plan your next trip.

  • Nina Kapp
  • Andrea Martinez
  • Nicole Laughlin
  • Juliane Ball
  • Farah Celada-Benito
  • Josue Zarco
  • Mylene Issartial