Okeanos Aggressor II, Costa Rica


The M/V Okeanos Aggressor II (formerly known as Wind Dancer) is a 36.5m state of the art liveaboard yacht scheduling year round Cocos Islands diving cruises. Cocos Island is most famous for its astounding pelagic life including whale sharks, schooling hammerheads, manta rays and white tip sharks. Scuba diving with the Okeanos Aggressor II offers up to four spectacular dives each day. All diving is done from a spacious dinghy and dive masters are on deck to assist divers entering and exiting the water.

Topside, a professional and courteous crew of 9 is on hand to ensure the comfort and satisfaction of up to 22 guests. The MV Okeanos Aggressor II has 11 deluxe staterooms equipped with private bathroom and shower, storage, television and individual climate control.

The onboard menu features a variety of American fare and local cuisine. Soft drinks, iced tea, beer, and wine are complimentary. Guests can also enjoy a spacious lounge and covered and uncovered sun decks with loungers and deck chairs, bar service and CD/stereo player.

Reserve your Cocos Island Okeanos Aggressor II liveaboard diving holiday today.

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Included: VAT, Accommodation, Complimentary toiletries, Transfers/pickups from airport, Tanks, Weights, Belts, All meals

Excluded: Divers: USD $490 Park Fee (10-night charters), Divers: USD $350 Park Fee (8-night charters), Non-divers: USD $350 (10-night charters), Non-divers: USD $250 (8-night charters), $30 Emergency Evacuation Plan (paid onboard), Dive equipment rental, Nitrox, All fees and taxes must be paid in cash, $29 airport departure tax (paid at airport), Please note: Guests' travel arrangements MUST include a one-night stay-over in San Jose - Costa Rica one day prior to the yacht's departure to meet the transfer schedule to Puntarenas from San Jose, Dive accident insurance is mandatory prior to traveling on the Okeanos Aggressor (proof is required prior to diving)

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 and are subject to change.

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Boat features

  • Leisure Deck
  • Shaded diving deck
  • Camera Station
  • Daily housekeeping
  • Audio & video entertainment
  • Library
  • TV in cabins
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Non-Diver (Snorkeler) Friendly
  • Photography Station
  • Outdoor Dining
  • Separate rinse for u/w camera
  • Camera room with table and charging point
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms

Food & Drinks

  • Western Food
  • Local Food
  • Vegetarian Options
  • Buffet style
  • Beer available
  • Selection of wines
  • Snacks All Day

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.


  • DIN Adaptors
  • Nitrox available
  • Rinse Hoses
  • Dive deck

The crew speaks English and Spanish.

Gear Rental

There is diving gear available to rent on this boat. Please provide your rental needs on the booking form.
You will need to pay for the rental gear on board of the boat. Show prices.

Drawings & Vessel Layouts

#deckplan floorplan

Boat Specifications

  • Length 120 feet
  • Beam 27 feet
  • Max guests 22
  • Number of cabins 11
  • Number of bathrooms 12

Boat Navigation and Safety

  • Radar
  • Depth Sounder
  • GPS
  • Radio VHF/DSC/SSB
  • E.P.I.R.B. Distress System
  • Emergency Rafts
  • Life Vests
  • Fire Alarm & Fire Extinguishers
  • Oxygen
  • First Aid Kits
  • Satellite & mobile phones
  • Bilge pump alarm
  • Search light
  • Crew trained in first aid
  • Emergency flares

Okeanos Aggressor II Reviews

  • 8.6 Fabulous
  • 15 Verified Reviews
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 9.2 Superb
  • Alexander S
  • Austria Austria
awesome and unforgettable dives - big THX!

big thx to carlos & crew! best was the relaxed and flexible and friendly crew & nice boat!

Recommended for
tauchen, tauchen tauchen und die super crew / staff!
  • 6.8 Review score
  • Mingyu W
  • United States United States
tough dives and room for improvement of dive guides

Saw Manta, Sharks, Turtles and tons of fish, Moray. Made some friends over the trip. Boat is very on schedule. Some improvements can be made. 1. Diveguides can pass on more knowledge of the marine life around the dive spots. 2. Some more helps from the boat might be useful, like ear beer, sunscreen, fish id card, very minor, but can be useful for travelers.

Recommended for
friendly crew, nice food, nice buddies
  • 8.4 Very good
  • Eric S
  • Canada Canada
So many sharks

The diving was great so many shark encounters on every dive. Schools of White tips and hammerheads. Galapagos Sharks galore. The food was amazing, th staff attentive. A shout out to Captain Carlos and to Edwardo.

Recommended for
Food, sharks, staff
  • 10 Exceptional
  • Cita M
  • Slovenia Slovenia
First but not the last liveaboarad trip

Hammerheads, Galapagos sharks, good diving team, dynamic driving with Pangas, full service.

Recommended for
Sharks, the crew and the expedition to Cocos Island
  • 9.2 Superb
  • christine W
  • United States United States
Chris NJ

we saw lots of big stuffs like hammerhead, tiger sharks and white tip sharks

Recommended for
good diving and good foods
  • 8.4 Very good
  • Fabian S
  • Germany Germany
Wahnsinnstauchplätze und riesige Galapagoshaie

The absolut highlihts of this trip were the schools of hummerheads, the very closed big fat galapagos sharks and fantastic guests. The hospitality of the crew was amazing. The best liveaboard food we ever had on a liveaboard! Additional a very good organisation. Coco`s is not the cheapest place to dive but one of the best of value for money! I strongly recommend it!.

Recommended for
the galapagossharks, the guests and the crew
  • 9.6 Exceptional
  • Gary F
  • United States United States
As good as indonesia on some dive sites

some sites had several schools of different kinds of fish, as well as sharks and turtles, all in one dive. I like to watch schools of fish. I have been to Indonesia on many dive vacations and Cano Island is as good as Indonesia for schooling fish on some dive sites.

Recommended for
evening meals were gourmet, staff provided good services, diving from the pangas was easy
  • 6.0 Review score
  • Kristi S
  • United States United States
Hammerheads galore

This was only my third liveaboard so I don't have a lot to compare this to. My first two liveaboards were so awesome, so this one was a bit disappointing. The standard cabins were very small. Only two dive masters for 19 divers. We did 23 dives and the diving was quite good. I just didn't feel the love from the crew like I did on my first two liveaboards. I didn't sense much passion for diving or hospitality. There are not a lot of options for diving in Cocos so maybe there wasn't a lot of motivation from the crew to make it an extraordinary experience for us.

Recommended for
  • 8.8 Fabulous
  • Lena L
  • Norway Norway
One of those bucketlist destinations...Has to be done at least once!

Diving against the classic 'wall of hammerheads' on Dirty Rock and getting up close with my first two tiger sharks. Everything is also super sized here, the sharks, the enormous (!) schools of fish, the multiple rays (we had two surprise mantas our week). Note that the boats travelling to Cocos are more simple than most of the luxury liveaboards you get in e.g. the Red Sea and Maldives, but hey, you have everything you need and who cares when diving this great!

Recommended for
Tiger sharks, hammerhead sharks, galapagos sharks!
  • 8.4 Very good
  • Glenn F
  • United States United States
Incredible diving experience

Plenty of sharks, hammers, galapagos, silkys, even saw a tiger. Plenty of fish. Action on every dive

Recommended for
diving, diving, food
  • 9.2 Superb
  • Jesus S
  • Spain Spain
Perfect sport for shark lovers

Cocos Island is a fantastic option for shark lovers due to the variety you can find at each dive. It is a long trip from Costa Rica but completely worth it. The crew did a great job to make sure we all felt comfortable. Special mention to the chef and his assistant, who amazed us every day with fantastic dinners.

Recommended for
Dive sites, marine faura, food onboard
  • 9.2 Superb
  • Annamaria B
  • Netherlands Netherlands

The highlight of the trip must have been being face to face to a tiger shark right away on check dive...and it only went up from there!

Recommended for
Pristine Nature Shark Diving, Great Food and Fantastic Crew!
  • 8.4 Very good
  • Suzanne Z
  • United States United States
Big animal life not as abundant as expected/anticipated

Overall, boat, food and crew were great. White tip sharks abundant, other shark life averaged 1 or 2 per dive, with Galapagos, black tip, hammerhead and tiger sharks. Limited sites around Cocos. Crossings were better than expected. Water was very warm, 3mm wetsuit fine, but probably why the bigger life was limited, El Niño conditions?

Recommended for
Crew, comfortable Owners cabin, easy diving
  • 9.2 Superb
  • Corinne K
  • France France
An unforgettable trip

The dives were diversified but their quality consistent and most of them were as fun as they were extraordinary. My cabin (the Master cabin) was just perfect and I loved the exquisite attentions on some evenings (chocolate on the pillow etc). But I found the sandard cabins really very small, especially considering the price (that's the reason of the 4 stars "only"). I would like to point out the professionalism, efficiency and friendliness of all crew members, from the cleaning man to the captain. They are all précieuse and really made this trip all the more enjoyable and all the more difficult to leave at the end. The food was also absolutely fantastic and the chefs accomodated me with delicious dishes accordingly to my vegetarian diet. Even though the boat is obviously not brand new, I found it beautiful and well maintained and enjoyed every moment on what felt like a floating home away from home. If the trip was not so expensive (one of the only flaws I can se), I would definitely do it again next year, and maybe the next, and over and over again.

Recommended for
The beauty and remoteness of dive sites and of the Island, the crew, the food