Okeanos Aggressor, Costa Rica
- from $ 489 / day
- 8.7 Fabulous
- 74 Verified Reviews 74 Verified Reviews
- Nitrox available


























Highlights
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.
The Okeanos Aggressor I liveaboard offers comfortable lodgings for 22 guests in `4 deluxe cabins, 2 twin cabins and 1 quad cabin located on the lower deck, and 3 deluxe cabins located on the upper deck. Each stateroom is en-suite with individually controlled AC, TV and media player and ample storage space. Meals are served in the large dining room and consist of a variety of freshly prepared cuisine of local flavours, American and BBQ. There is also a large salon with an entertainment system, complete photo centre and library, and on the sun deck are comfortable loungers, deck chairs, bar and grill. The highly trained and experienced crew of the Okeanos Aggressor are ready and waiting to share the magical beauty of Cocos Island both above and below the water.
Book your Okeanos Aggressor liveaboard easily online today.
The Aggressor team have implemented additional measures in line with the recommendations from the Center for Disease Control (CDC, USA) or European Center for Disease Prevention and Control (ECDC, EU) to further ensure the safety of all guests on board. These measures include (but are not limited to) an increased frequency in cleaning and sanitizing public areas, guest rooms preparation procedure upgrade and rooms to be serviced twice daily.
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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), Fuel Surcharge (200 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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Boat features
Food & Drinks
If you have any specific dietary requirements whilst on-board your cruise, you can add this to your special requests on step 2 of the booking form. We advise limiting these requests to religious beliefs or food allergies.
Diving
The crew speaks English.
Gear Rental
There is diving gear available on this boat. Please provide your rental needs on the booking form. See below for further details on inclusions and pricing. Show prices.
Drawings & Vessel Layouts

Boat Specifications
- Length 110 feet
- Beam 24 feet
- Cruising speed 10 knots
- Max guests 22
- Number of cabins 10
- Number of bathrooms 12
Boat Navigation and Safety
Okeanos Aggressor Reviews
- 8.7 Fabulous
- 74 Verified Reviews
- Vessel 7.6
- Crew 9.4
- Food 9.6
- Diving 8.9
- Value 8.2
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
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
Great diving, excellent crew
Any
- Recommended for
- Other divers on board were perfect, crew, diving
amazing liveaboard adventure
Great trip. I'm already planning the next one to a different point in Costa Rica. The only drawback has nothing to do with the Okeanos: seemingly due to national politics, the park fee to Cocos Isl has doubled two years ago to roughly $500.There has been a lot of grumbling about this. Thus, I won't be going back to Cocos until, hopefully after the next prime minister's election, this policy is amended to a more reasonable price.
- Recommended for
- s/a
Best diving so far.
Had a blast!!
- Recommended for
- friendly crew, New diving friends, Whale shark!!
Exelent very high level of service and very frendly staff
Brilliant 100 pct
- Recommended for
- The captain mr Beco 2 the dive sites 3 the very frendly and helpfull staff and exelent food
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
Exelente
Todos los buceos
- Recommended for
- la isla y su buceo y la tripulación
Belle plongée mais le bateau n'est pas du tout à la hauteur du prix
Le banc de 16 marteaux, les 3 requins tigre en une plongée. J'aurais aimé aller plus dans le bleu pour essayer de voir d'autres choses.
- Recommended for
- The wildlife, the crew, the food
Equipage sympa mais vieux bateau et guide de plongée décevantes
Repas et convivialité du personnel.
- Recommended for
- Repas délicieux, équipage très à l écoute