Okeanos Aggressor II, Costa Rica

Excellent food and drinks

“We had amazing dives in Cocos with a great group and friendly staff. We saw lots and lots of hammerheads up close and personal. E…”

Jillian Z, United States United States
Read 49 more reviews


  • Year-round diving to Cocos Island
  • Dive one of the most exhilarating dive destinations in the world in comfort and luxury
  • Regular sightings of schooling hammerheads, countless white-tip sharks, manta rays, tuna, and whale sharks

The Okeanos Aggressor II liveaboard was built for comfort and stability to offer year-round diving at the remote islands of Costa Rica. The yacht provides comfortable accommodation for 24 guests in 12 en-suite cabins. Eight deluxe staterooms are located on the lower deck, and there is a double lower bed and twin upper bunk-style bed. On the main deck is the master stateroom with a queen bed, and on the upper deck are two suites that have either two twin beds or one king bed.

On the main deck is the ship's restaurant, where delicious cuisine with a varied and plentiful menu is served. Breakfast and lunches are buffet-style, and dinner is chef-prepared and served each evening. On the top deck is the BBQ and shaded cocktail bar, perfect for unwinding with fellow guests to discuss the spectacular diving of the day. Here, you can also find comfortable loungers to do some tanning in between dives.

The Okeanos II liveaboard departs from Puntarenas, Costa Rica for the 36-hour crossing to Costa Rica. Guests can enjoy up to 21 dives at the UNESCO World Heritage site for the chance of big fish encounters like nowhere else. Aside from the incredible diving, guests will also be taken ashore to hike through the jungles of Cocos and swim in the many waterfalls.

Book online today to reserve your space aboard the Okeanos Aggressor II liveaboard.

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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: Chamber Fees (30 USD), National Park Fees (350-630 USD), Port Fees.

Optional Extras: Dive Insurance, 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

  • Camera Station
  • Audio & video entertainment
  • TV in cabins
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Non-Diver (Snorkeler) Friendly
  • Warm Water Showers
  • Camera room with table and charging point
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms
  • Non-Smoking Rooms
  • Outside Showers
  • Snorkeling Equipment
  • Separate Rinse for u/w Camera
  • Leisure Deck
  • Bar
  • BBQ Area
  • Available for Charter
  • Jacuzzi / Hot Tub

Food & Drinks

  • Western Food
  • Local Food
  • Buffet style
  • Beer available
  • Free Wine w/Dinner
  • Free Soft Drinks
  • Fine Cuisine
  • Full-board Option

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.


  • Nitrox available
  • Rinse Hoses
  • Dive deck
  • Tenders for diving
  • Shaded Diving Area

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

#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

  • 8.5 Fabulous
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 7.2 Good
  • Jillian Z
  • United States United States
Fantastic trip and experience

We had amazing dives in Cocos with a great group and friendly staff. We saw lots and lots of hammerheads up close and personal. Excursions on land were fun. Food was plentiful and had a nice variety of options. Ride out was 41 hours and rough, but our ride back was 36 hours, smooth and sunny. Overall was a fantastic trip and experience. Cocos is truly a special place.

Recommended for
The diving in Cocos. The group, both divers and staff. The Masterstateroom.
  • 8.8 Fabulous
  • Peter M
  • United States United States
Terrific experneice

I'm going to use this space to provide what I hope is helpful commentary. As indicated by the ratings I gave, the experience was excellent. Two small things, though. The showers in the cabins are substandard. Don't know if this can be fixed/upgraded. Also, the exhaust from the engines and/or generator delivered a lot of soot to the back deck. Our feet were black, and the gear got dirty from it, too. Extend the exhaust pipe higher, or something?

Recommended for
sharks, weather, abundance of fish
  • 9.2 Superb
  • Joanna L
  • United States United States
Trip of a lifetime

The diving exceeded expectations, the crew was so hospitable and went out of their way to make sure we lacked for nothing, and the food was the best I've ever had on a liveaboard. The only criticism, is that the boat's common areas could use a little updating.

Recommended for
Diving, crew, and food!
  • 8.4 Very good
  • Brian B
  • United States United States

Seeing Coco island and the large number of sharks, rays, tuna, and schools of jacks and trevally

Recommended for
Dive sights. Dive Masters. Crew friendliness and attention to customers
  • 3.6 Review score
  • Anthony D
  • United States United States
Probably one of the worst liveaboatds boats. I’ve been on in terms of dive deck space, camera table space. Literally people on top of each other while gearing up for each dive. Crew seemed to be in a

Seeing new species of fish and sharks.

Recommended for
  • 7.2 Good
  • egbert J
  • Netherlands Antilles Netherlands Antilles
It was really great and excellent put together

The underwater world and the waterfalls.

Recommended for
Diving, food, land & underwater tour
  • 7.6 Good
  • Josh G
  • Puerto Rico Puerto Rico
It was an amazing adventure to the Coco's islands

It was a great trip overall. The diving was great and we saw almost all there is to see in the Cocos besides whale sharks and tiger sharks but plenty of other stuff. The rooms could use some new sheets and pillows to make it a bit more comfortable, and quite small but they did the job. If I had to share with someone that I didn't know, probably would have been much more of an issue. However, they were nice enough. The shower in the room never got hot and the soap dispenser didn't work but there are amazing showers out back for after the diving that were hot and a perfect end to every dive. The coolest part of the boat for sure. I expected a bit more for the cost but it was overall an excellent adventure. The food was excellent but the fact there is no alcohol on board is quite disappointing since the cost is so expensive and that is why that is a 4. The diving was superb. Not as good as other places I have been but still top of the game and we all had a blast diving. Agressor Galapagos was a far superior trip in all ways if I must say. Except the cold water! The water in the Cocos was amazing. 72-87 degrees. 2/3mm suit is perfect. I went in February.

Recommended for
Sharks, Food, and outdoor shower!
  • 9.2 Superb
  • Sandra H
  • Austria Austria
Diving was amazing the dive guides too also the every other crew member too. Kind, helpfull, thinkfull.

Diving for sure :-)

Recommended for
Diving Crew View
  • 9.2 Superb
  • Jörg W
  • Switzerland Switzerland
Once in a lifetime experience - just amazingly wonderful COCOS ISLAND !

Best diving with hundreds of hammerhead sharks, groups of Galapagos sharks, many white tips, some black tips, eagle and marble rays and an unlimited number of tropical fish. Many different dive sites, some with quite a bit of current. The climb of Cerro Iglesias was also a highlight of my trip to Cocos Island. Okeanos Aggressor II boat was very convenient, great food and an incredibly nice crew.

Recommended for
1. Safety first / 2. Wonderful crew / 3. Great dive sites
  • 6.8 Review score
  • Bernhard K
  • Germany Germany
Good diving and excellent food!

Besides the diving, the Sushi-Dinner!

Recommended for
Diving with Sharks - Tiger-, Whale- and Hammerhead Sharks