Okeanos Aggressor II, Costa Rica

Name: Cocos Island Adventure (Puntarenas - Puntarenas)
Start: 2027-03-10
End: 2027-03-20
Location: Costa Rica

8.6 Fabulous

Nitrox available
En-Suite bathrooms
Aircon Cabins
Warm Water Showers

from $ 504 / day Check dates

Island Exploration - Okeanos Aggressor II

En-Suite bathrooms - Okeanos Aggressor II

“The chefs and the food were amazing, no doubt I gained a few kilos on my vacation :). ”
Camryn S, United States

Highlights

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.

Choose your departure date

Date

Itinerary

Price

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09 Aug

11 Days / 10 Nights

$ 6,399

FULL

26 Aug

9 Days / 8 Nights

Female Shared Cabin.

$ 5,399

Select Cabin only 1 space left

05 Sep

11 Days / 10 Nights

$ 6,399

FULL

23 Sep

9 Days / 8 Nights

$ 5,399

FULL

22 Oct

11 Days / 10 Nights

$ 6,399

FULL

14 Nov

11 Days / 10 Nights

$ 6,399

FULL

04 Dec

11 Days / 10 Nights

$ 6,399

FULL

26 Dec

11 Days / 10 Nights

$ 6,399

Select Cabin only 2 spaces left

20 Jan

11 Days / 10 Nights

$1000 OFF! Rates include discount. Valid until July 31, 2026.

$ 5,549 Deal %

Select Cabin available

16 Feb

11 Days / 10 Nights

$ 6,549

FULL

10 Mar

11 Days / 10 Nights

$ 6,549

FULL

03 Apr

11 Days / 10 Nights

$ 6,549

Select Cabin available

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), Fuel Surcharge (140-180 USD / trip), 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

En-Suite bathrooms
Aircon Cabins
Warm Water Showers
Air Conditioned saloon
Sun Deck
Camera Station
Non-Smoking Rooms
Camera room
Custom built for diving
Charging stations
Indoor Saloon
Audio & video entertainment
TV in cabins
BBQ Area
Available for Charter
Snorkeling Equipment
Separate Rinse for u/w Camera
Outside Showers
Leisure Deck
Bar

Food & Drinks

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

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

Nitrox available
Shaded Diving Area
Sidemount diving – Single Tank Only
Rinse Hoses
Dive deck
Tenders for diving

Languages Spoken

The crew speaks English.

Gear Rental

Equipment is available for rent on this boat. Please provide your rental needs on the booking form. If the rental gear is not included in the price, you will need to pay for it on board the boat. Show prices

Drawings & Vessel Layouts

Cabin Types

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

Vessel

7.4
Crew

9.4
Food

9.5
Diving

9.0
Value

7.8

8.0 Very good
Daniel H
Switzerland

A beautiful diving cruise
The dives are very beautiful with lots of hammerhead sharks, galapagos sharks, silky sharks etc.
Recommended for
The food on board is excellent. The dive sites are beautiful and varied. The overall atmosphere was very friendly.
22 Mar, 2026

Translated from French

9.6 Exceptional
LILING Y
China

Although it's far by boat, it's worth going
See a lot of sharks and experience great boat service
Recommended for
1. See a lot of hammerhead sharks 2. Land travel is great The service on board is very good
14 Oct, 2019

8.4 Very good
Eric S
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
27 Jan, 2018

10 Exceptional
Alejandro N
Argentina

The best life on board of my life
Amazing dives: Hammerheads, tigers and Galapagos everywhere. The crew is aware of the passengers at all times. The best Dive masters. Thanks a lot.Pura Vida!
Recommended for
Dive sites. Dive Masters and boat staff. Food.
14 Nov, 2019

Translated from Spanish

10 Exceptional
Michael J
United States

Great option for cocos!
The crew was very friendly and accommodating, food was excellent. Dives were safe and enjoyable. This is a great option to see cocos and more budget friendly than the alternatives.
Recommended for
Saw tons of hammerheads, a whale shark, and enjoyed the underwater life in the pacific.
27 Jul, 2021

9.2 Superb
Camryn S
United States

10/10 would go again
This was a fanstic trip to spend time with my brother and meet new friends. The diving was superb, never a dull dive day. The crew were always willing to help and were very friendly. The chefs and the food were amazing, no doubt I gained a few kilos on my vacation :). Even though some days the weather was not ideal, the crew and the dive guides did their best to still offer the best experience in and out of the water.
Recommended for
The chef and the food were fantastic! Also very good on accommodating dietary preferences. the diving and the dive guides/penga captains were great! Always ready to help and provide the best service. the crew and other costa rican guests were very hospitable to us and made us feel welcome in their country..
19 Jun, 2025

8.8 Fabulous
ERIC M
France

Fabulous dive sites on which a very competent and supportive team will accompany you.
Every day is a pleasant day.
Recommended for
Crew / meals / organization
11 Jan, 2022

Translated from French

9.2 Superb
Alexander S
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!
13 Sep, 2018

9.2 Superb
JULIAN G
Colombia

A journey through time and space
The trip to Cocos Island in Costa Rica aboard the Okeanos Aggressor II was unforgettable. With a friendly, helpful and knowledgeable crew of the operation, we were able to visit this magical destination that transports one in time and space. On the trip we shared with people from several countries around the world in a very pleasant atmosphere, being able to visit fantastic diving spots where we saw multiple species of pelagic animals from the Pacific Ocean.
Recommended for
The chosen destination, the crew and the food
28 May, 2019

Translated from Spanish

10 Exceptional
Cita M
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
21 Jan, 2018

65 reviews

8.6 Fabulous
65 Verified Reviews

Sort reviews by:

9.2 Superb
David T
Canada

Had a great time and met great people
The small trips to the island were cool. The Diving was amazing.
Recommended for
The diving, the staff and the food
28 May, 2019

9.2 Superb
james W
United States

An amazing trip with exciting diving and fun filled down time between dives.
Variety of marine life and the crew.
Recommended for
The crew. The diving. The other people on board.
29 Aug, 2019

8.8 Fabulous
Lena L
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!
13 Jan, 2017

8.0 Very good
Michelle W
United States

Great diving cabins small
Diving with my 18 year old son. People on board were great. Cocos island is incredibly beautiful
Recommended for
Diving Safe Cocos Island
02 Apr, 2019

8.4 Very good
Fabian S
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
27 Mar, 2017

9.6 Exceptional
Kayla W
Canada

Once in a lifetime experience
Really unforgettable trip, the crew was outstanding, Coco's island is so special, and the diving was just amazing. The water temp in April was around 29/30 degress celcius, so lovely!
Recommended for
The amazing diving. The crew was so helpful. The island of Coco's is so special.
02 May, 2026

9.2 Superb
christine W
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
01 Jun, 2017

9.2 Superb
Joanna L
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!
10 Jan, 2023

7.2 Good
Jillian Z
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.
10 Jul, 2024

9.2 Superb
Mario H
Germany

It was a great diving trip
The many hammerhead sharks, the food on board, the team of the Okeanos 2
Recommended for
The hammerhead sharks, the large schools of fish and of course the team of the Okeanos 2
23 Feb, 2023

Translated from German

9.6 Exceptional
Francois D
France

Spectacular dives
The 36-hour sailing is well worth it. Extraordinary dives especially on the dirty rock site with a spectacular school of jack fish, and an unforgettable school of hammerhead sharks.
Recommended for
Quality of the dives. Atmosphere. Schools of hammerhead sharks.
02 Sep, 2025

9.6 Exceptional
Gary F
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
24 Jan, 2017

8.4 Very good
Alazne C
Spain

Hammerheads on a paradise island
Diving was very good quality, in most of them we went out to the blue in search for schools of hammerheads. We had many close-up encounters too in cleaning stations. Galapagos sharks, dolphins, reef sharks, marble rays and eagle rays also appeared. The crew is super friendly and they will do their best to repeat the best dive sites as many times as possible, food is excellent. The only drawback of this boat is that the cabins were way too cold and there was no way to control the aircon individually, it was conected for all the cabins due to the engine located downstairs. For this reason I barely used my cabin.
Recommended for
Hammerheads and dolphins. Friendly crew. Divesites repeating oportunity.
02 Sep, 2025

10 Exceptional
Nasira (Nancy) G
France

The dives were beautiful. The staff was discreet, efficient, professional and very pleasant, we had an unforgettable cruise stay. Thank you Manuel, Favien, Lewis, Hannibal, Carlos, without or
The best moments are the dives in Alycion with the encounter with the herd of hammerhead sharks, Galapagos sharks. Magnificent dives.!!!!!
Recommended for
Dives - meals - comfort of the boat.
25 Oct, 2023

9.2 Superb
Jörg W
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
07 Aug, 2022

6.8 Review score
Mingyu W
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
10 May, 2018

9.6 Exceptional
Patrick M
Ireland

Fantastic trip. Highly recommended.
Going in April you get benefit of better conditions, warmer water, calmer crossing and less current. This comes with the trade off of less big groups of pelagics. That said we had plenty of great encounters with hammerheads, galapogas, silky, black tips, dolphins, eagles and Mantas. They were almost all lovely doves. The team was excellent, in particular Luis and Facundo as dive guides, Esteban and Gerardo as the chefs and Giancarlo on hospitality. I’ve been on 6 liveaboarda and the food was the best I’ve had, incredibly sushi nights, steak and many more. The boat is older but incredibly solid. Most of the negative reviews I’ve read were on the boat, yes the cabins are a bit ‘cozy’ but I knew this going into and didn’t mind. Overall the boat is in great structural condition, everything works very well it just has slightly dated decor and smaller cabins.
Recommended for
Diving. Crew. Food.
02 May, 2026

7.6 Good
Werner M
Germany

A great adventure
The crossing was very pleasant due to the weak sea. Divespots met expectations. A lot of hammerhead and Galapagos sharks, manta rays.
Recommended for
The helpfulness and friendliness of the crew. Diving equipment remains mounted in the dinghy, briefing, description of the dive sites. The food offer.
09 Dec, 2025

8.0 Very good
Sebastien F
France

Wonderful liveboard experience in Cocos Island!
Saw many sharks: many Hammerheads, Galapagos, Tiger (one encounter in particular was just amazing!), Silk, Silvertip, counteless number of white tips. Saw mobula, eagle and marble rays. We also spotted dolphins on the surface. Big school of jack fishs and seabass. The reef life is also rich.
Recommended for
Adventure in a remote and pristine area. Magnificient marine life. Crew very professional
07 Dec, 2019

9.2 Superb
Sandra H
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
23 Feb, 2023