Cocos Island Aggressor, Costa Rica

Name: Cocos Island Adventure (Puntarenas - Puntarenas)
Start: 2026-12-05
End: 2026-12-15
Location: Costa Rica

8.6 Fabulous

Nitrox available
En-Suite bathrooms
Aircon Cabins
Warm Water Showers

from $ 622 / day Check dates

Island Exploration - Cocos Island Aggressor

“Giant Schools of Hammerhead Sharks on several dives, Hammers on every dive.”
Jonathan N, United States

Highlights

Dive in a dive destination that is said to rival the Galapagos Islands
Diving with hammerheads, eagle rays, and whales
Complimentary soft drinks, iced tea, and wine
Spacious personal dive gear storage lockers

Built for comfort and stability, the Cocos Island Aggressor is a 38 meter/124ft liveaboard that accommodates up to 22 passengers in 11 staterooms – 4 master staterooms on the upper deck and 7 deluxe staterooms on the lower deck. Each room has a private bathroom, shower, and air conditioning, and every passenger gets a spacious locker for their dive gear. The Cocos Island Aggressor has a spacious salon, a large sun deck, loungers and chairs, a bar, and a grill. With a varied, mouth-watering menu, lunches consist of lighter meals such as hot soups, salads, and sandwiches. The talented onboard chef prepares delicious dinners that include salads, seafood, beef or chicken, BBQ, and even fresh homemade desserts. There is a variety of complimentary fruit juices, soft drinks, water, iced tea, coffee, and a limited selection of local beer and wine. All meals, snacks, and beverages are provided.

Boarding and departure times are subject to the tides. Immediately after boarding, the liveaboard departs for its 36-hour crossing to Cocos Island. During trips and between dives, guests can hang out at the bar on the top deck and catch up on the day's diving while relaxing on the comfortable loungers. The Cocos Island Aggressor offers multiple dives throughout the day for an average of 21 dives on a 10-night trip. No night diving is currently offered at Cocos Island.

Guests can enjoy diving at the Cocos Island National Park, a UNESCO World Heritage site, for the chance of big fish encounters with creatures like hammerheads, whitetip sharks, manta rays, and whale sharks. Aside from the incredible diving, guests will also be taken ashore to hike through the jungles of Cocos and swim in waterfalls.

Book online today to reserve your space aboard the Cocos Island Aggressor liveaboard.

Choose your departure date

Date

Itinerary

Price

Select

04 Jul

11 Days / 10 Nights

$ 6,849

FULL

18 Jul

11 Days / 10 Nights

$ 6,849

FULL

02 Aug

11 Days / 10 Nights

$ 6,849

FULL

15 Aug

11 Days / 10 Nights

$ 6,849

FULL

30 Aug

11 Days / 10 Nights

$ 6,849

FULL

12 Sep

11 Days / 10 Nights

$ 6,849

FULL

10 Oct

11 Days / 10 Nights

$ 6,849

FULL

24 Oct

11 Days / 10 Nights

$ 6,849

FULL

07 Nov

11 Days / 10 Nights

$ 6,849

FULL

21 Nov

11 Days / 10 Nights

$ 6,849

FULL

05 Dec

11 Days / 10 Nights

$ 6,849

FULL

19 Dec

11 Days / 10 Nights

$ 6,849

FULL

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: Fuel Surcharge (140-180 USD per trip), National Park Fees (350-630 USD per trip).

Optional Extras: Gratuities, Nitrox, 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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Best Price Guaranteed

Boat features

En-Suite bathrooms
Aircon Cabins
Warm Water Showers
Air Conditioned saloon
Sun Deck
Custom built for diving
Charging stations
Indoor Saloon
Audio & video entertainment
Local & International Crew

Food & Drinks

Free Wine w/Dinner
Vegan Options
Vegetarian Options
Free Soft Drinks
Beer available
Full-board Option
Welcome Cocktails
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
DIN Adaptors
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

1A, 1B

Boat Specifications

Year built: 2022

Length: 124 ft

Beam: 28.5 ft

Max guests: 22

Number of cabins: 13

Number of bathrooms: 11

Boat navigation and safety

Radar
GPS
Radio VHF/DSC/SSB
Emergency Rafts
Life Vests
Fire Alarm & Fire Extinguishers
First Aid Kits

Cocos Island Aggressor Reviews

8.6 Fabulous
27 Verified Reviews

Vessel

7.8
Crew

9.0
Food

9.6
Diving

9.1
Value

7.7

8.4 Very good
Dennis B
United States

Bucket list dive trip.
Excellent crew and top rate diving. Hammers, Tiger, Galapagos, White tip, Silver tips, Manta, Dolphins, Wahoo, Tuna, Jacks, Marble rays, Giant Morey, and more. One of the best dive spots in the world.
Recommended for
Warren, Alberto, Eduardo, Mauricio, Gerado, Dionicio, Douglas, Jeorge, Brainer, and Luis. Calm waters and excellent diving. Great group of divers from around the world.
10 Jun, 2026

9.6 Exceptional
Siasky B
Costa Rica

Aggressor does not disappoint!
The quality of services provided by Aggressor and the scenery and dive site are exceptional. I invite nationals and foreigners to visit Cocos Island on the Agreessor III, the newest of the Aggressor fleet in Costa Rica.
Recommended for
The boat is the best and the most adapted to divers
16 Mar, 2024

Translated from Spanish

9.2 Superb
Sean M
United States

A great adventure, beautiful dive sites all to yourself, great crew members to make the trip special
Great overall experience from start to finish, seeing schools of hammerheads, Galapagos, and even a whale shark. I would love to go back
Recommended for
The crew was exceptional, very friendly and helpful. The diving was great, each dive had new and interesting things to see even when repeated. Sushi night.
21 Aug, 2025

10 Exceptional
Arthur B
France

Hammerheads galore
It was an absolutely dream of a liveaboard, Cocos does not disappoint. Hammerheads are such a daily fixture that you get used to see them every dive. Got so many beautiful memories (and videos). It is a very expensive trip, but definitely worth it !!
Recommended for
Hammerheads. Tiger Shark. Great people.
12 Feb, 2026

9.6 Exceptional
Ian K
United Kingdom

Exceptional Cocos Island experience
Incredible sealife - including schooling hammerheads and dolphins, enormous manta rays and countless Galapogos sharks, all within clouds of other fish. Excellent service from the crew made us feel very special, and made it one of the most memorable holidays we have ever had.
Recommended for
Exceptional diving. Oustanding service from the crew. Excellent food.
21 Aug, 2024

9.2 Superb
nicolas G
France

Cocos Island is an incredible spot !!
Great atmosphere on the boat during all the trip, amazing dives.
Recommended for
amazing dives. great staff and food. warm atmosphere.
15 Oct, 2025

8.8 Fabulous
Yolanda T
United Kingdom

Recommend it!
Anazing dives with tons of hammerheads! Great experience, but the toilet drainage sometimes smells and saw a few cockroaches. Love it overall!
Recommended for
Hammerheads. Food. Safety.
28 Sep, 2025

8.8 Fabulous
Jonathan N
United States

Cocos is one of the few dive locations that lived up to the hype in spades, best pelagics diving I've done thus far.
Cocos is one of the few dive locations that lived up to the hype in spades. Giant Mantas 1 foot away several times, interacting. A Pod of 30+ Bottlenose Dolphins playing with us for 20 mins.Giant Schools of Hammerhead Sharks on several dives, Hammers on every dive.The Food and Professionalism on the Boat was Awesome, Especially the DM and Trip Director Warren. Give Warren a Raise. The boat ride is a long one, but totally worth it. The world needs to mimic the marine protections that the Costa Rican Government has put in place at Cocos.
Recommended for
Giant Mantas 1 foot away, a Pod of 30+ Bottlenose Dolphins playing with us for 20 mins.. Giant Schools of Hammerhead Sharks on several dives, Hammers on every dive.. The Food and Professionalism on the Boat was Awesome, Especially the DM and Trip Director Warren. Give Warren a Raise..
18 Jul, 2025

8.4 Very good
Anonymous
Germany

Great experience
The diving with sharks The walks on the island Sushi night:-)
Recommended for
Crew, Food, Organisation
29 Nov, 2023

9.2 Superb
Gaby L
Germany

Perfect trip to Coco Islands
I enjoyed the dives, the reliable daily routine was relaxing, food is excellent, enough space for everyone, the crew is amazing, helping all the time, kind and always in a good mood. The comfort is good, you do not need more when you dive!
Recommended for
The Crew. Organisation. Dive selection.
06 Apr, 2025

27 reviews

Sort reviews by:

7.6 Good
Audrey H
Malaysia

Fabulous diving, comfortable boat, friendly crew
Hammerheads, Galapagos sharks, jacks, marble rays, eagle rays, oceanic manta
Recommended for
Excellent diving; friendly and helpful crew; land activities
16 Mar, 2024

8.4 Very good
Frank Rainer G
Germany

The professionally trained crew offers guests unique diving experiences as well as an extremely comfortable stay on board.
The observation of a hammerhead shark at a relatively short distance. There was at least one whitetip reef shark to spot on every dive. Large swarms of jacks could often be observed. The organization of the procedures on the dive deck always allowed for a RELAXED preparation and follow-up of the dives. A coffee machine that dispensed really VERY GOOD coffee at ALL times.
Recommended for
A crew of which EVERY single one offered professional and friendly service at ALL times. The observation of a hammerhead shark at a relatively short distance. First-class catering.
10 Feb, 2024

Translated from German

9.2 Superb
Michael P
United States

Can't Wait to do it again!
I booked this liveaboard for my 50th birthday and it did not disappoint. The boat was comfortable and spacious. The crew could not have been better. Jorge, our waiter, was super nice and accommodating. The Chef did a fantastic job! As a pescatarian, they were very accommodating but I would have liked more bean and tofu options for protein. The Panga drivers, Alberto and Lito, were awesome. The dive leaders, Mauricio and Warren were phenomenal. I followed Warren from Panga to Panga because I enjoyed his leadership and guiding. I dived with Mauricio one day and he was fantastic too! I was sad to leave but inspired to do it again.
Recommended for
The location and diving.. The crew. The boat.
12 Aug, 2024

10 Exceptional
Jack K
United States

Excellent
At the end of the week the crew assembled videos and slide shows to share with us and when you see all of the wonderful tings we saw underwater you realize just how wonderful the trip was. Cannot say enough about how wonderful the crew was and the food was excellent!
Recommended for
The crew, the food, the boat
16 Mar, 2024

8.8 Fabulous
Kiko G
Brazil

Excellent crew
.
Recommended for
.
11 Jan, 2024

9.6 Exceptional
Kelly L
United States

Must dive Cocos Island!
Whale sharks, hammerheads, mantas.
Recommended for
Whale sharks, hammerheads, mantas.
29 Jun, 2024

8.0 Very good
Tom M
United States

Great diving in Coco Islands
An amazing experience diving one of the more remote places in the world. Unfortunately the "new" boat (which seemed refurbished at best) had issues and our bow cabin was very cramped and certainly not as advertised.
Recommended for
Great dives. Excellent food. Highly attentive crew.
16 Feb, 2023

9.2 Superb
Christopher A
United States

The Crew and Island are the entire trip!
Cannot emphasize enough how fabulous this trip was. Cocos Island has got to be one of the most beautiful places on earth ... both out of and under the water. Capt. Mauricio is an absolute gem! Always laughing and helped me when I got a little nervous with the 5ft+ swells, gave me the nickname Scarey Shark - hahahah! As a matter of fact the entire crew were gems! Each one always had a smile on their face and made sure that your stay aboard the Cocos Island Aggressor was perfect. Warren the Cruise Director/Dive Guide was passionate, knowledgeable and did an amazing presentation at the end with the video of our trip. You can tell he loves Cocos and diving ... I think sometimes he got so wrapped up in enjoying the dive that he forgot he was our dive guide. Our server Eduardo was spectacular; had our drinks ready at each meal, our room turned down with chocolate each night and EVEN DID LAUNDRY (which is a huge plus on such a long trip) The rooms were nice and comfortable. The WC had a slight odor but seriously what do you expect from a boat. There were designated space under the beds for suitcases which was also a plus. The diving was out of the this world. El Niño ended in April and we were in a La Niña with colder water which brought in the sharks. Oh my goodness were there sharks! Hundreds of sharks! But not only that we saw a Manta, Whale Shark, sharks mating and one person in our group saw a Stripped Marlin in the distance not to forget ALL the fish! We were in the rainy season which I was not looking forward and now I think that is the only time to go. This brought in alot of rain, wind and big swells so trips in the panga were quite bumpy but also brings in all the large pelagics. The land tours were great too. Thank you to the crew of the Cocos Island Aggressor! Can't wait to come back!
Recommended for
Crew, Cleanliness, Laundry Service
08 Jul, 2024

8.0 Very good
Daniel Tobias R
Germany

Great liveaboard for anyone who loves big fish.
It was one of the best liveaboards we have done. A lot of big fish and wonderful experiences and dive sites.The boat was ok, a bit old, but still luxurious. A lot of defects (Panda and nitrox) have reduced the overall result a bit.
Recommended for
The crew was always nice and helpful in all matters. The dive sites were well chosen and we had a say. The food was amazing.
06 Oct, 2024

10 Exceptional
Stephanie V
United States

Top Notch Cocos Diving
The Cocos Aggressor lives up to your expectations as far as crew, boat, diving, and accomodations. Your every desire is taken care of and you can enjoy a super dive holiday. Dives are changed immediately to accomodate the weather but it does not slow anything down. The only negative is the charge for nitrox and internet. 98% of divers are nitrox certified and with the depths of these dives, it should be a mandatory certification for the trip. The boat already has Skylink going continuously, so to charge for it is an inconvenience found out during the trip. Both of these costs should be included in the entire cost of the trip.
Recommended for
Crew met all your expectations. Food was wonderful. Diving was awesome.
15 Oct, 2025

8.8 Fabulous
Bettina J
Switzerland

Awesome experience, with a lovely crew
Amazing, with lovely diving, an awesome crew that was super thoughtful & attentive. What really could be better is the cleaning - everything is a bit dingy and dirrty. The bathrooms especially are pretty groce, they stink (just use some campaor) & need a mokeover! Also the boards around the whirlpool are loose & a few people fell over them.
Recommended for
Crew & Team. Diving & the space you have for your gear. Cuisine - very healthy and super yummie.
20 Aug, 2024

8.8 Fabulous
Adam F
United States

Despite cabin accommodations being less than optimal, the staff, the diving, the food, and the scenery were excellent.
Swam with a giant Oceanic Manta. Saw scores of hammerheads. Marble Rays. Massive schools of Jacks.
Recommended for
1. The diving 2. The island 3. The food.
29 Mar, 2024

5.6 Review score
Eric S
Canada

To many divers not enough guides ratio of 12:1
Hammerheads
Recommended for
Food, sharks and other guests
26 Jun, 2024

8.8 Fabulous
Juan Jose O
Mexico

Excellent trip that made a pleasant experience of coexistence with crew, guides and fellow travelers. Repeatable.
The entire trip is memorable.As an idea to improve, my cabin was #6 and presented problems fe bad smell, maybe due to some drainage issue, it needs to be checked
Recommended for
Food, friendliness and service.
05 May, 2023

8.8 Fabulous
jim G
United States

REMOTE ! and other things
Lowlights: it's an older ship , and AC seems to be an "almost-always" issue - our room was 83 / humid all trip as was a few other rooms.
Recommended for
Early March trip : only boat on/and/or around Cocos Island ! , hammerheads , great crew
16 Mar, 2024

8.0 Very good
Steven W
United States

Great dive. Diving well organized
Better options for dietary restrictions. Vegan options were not really offered even though it was indicated on the preference sheet
Recommended for
Diving well organized. Cruise Director very engaged. Video options for purchase.
06 Apr, 2025

4.4 Review score
Travis M
Canada

Disappointing trip on Cocos Island Aggressor
This is a tough review to write because I really had my hopes up for this trip but there are so many things that went wrong on my trip it's really disappointing. While the diving was very good and our wildlife encounters were great the bad side is the boat side needs some work. First of all the cabins have no external ventilation, so this means humidity from there shower is trapped in the room, and any dampness brought in with the divers stays in the room. My room was very humid at night which forced me to sleep outside most nights. Secondly the showers often ran out of water which was frustrating. The fire extinguisher in my cabin was empty as well. For the first few nights hardly any protein was served with dinner and it took some complaints from guests to get this resolved. Sometimes it felt as if the diving wasn't a priority for the crew as we often dove the same sites repeatedly even though nothing was seen there. Also the dive schedule was adjusted twice to accommodate the crew from Aggressor 3 to play soccer against the crew of Aggressor 2, the priority was getting the game in and not the diving for the guests. Lastly the host hotel - D Sabana - is in a bad neighborhood. When walking around outside the hotel we were stopped by locals telling us it's not safe and to go back where we came from. Would recommend staying elsewhere and then taking a cab to D Sabana to meet pick up time.
Recommended for
Other guests. Diving. Remoteness of the location.
02 May, 2025