Cocos Island Aggressor, Costa Rica

Excellent food and drinks

“Swam with a giant Oceanic Manta. Saw scores of hammerheads. Marble Rays. Massive schools of Jacks. ”

Adam F, United States United States
Read 11 more reviews


  • 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 deck 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 drinks 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 diving of the day 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 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.

Call us or book online today to reserve your space aboard the Cocos Island Aggressor liveaboard.

Choose your departure date


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: 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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Boat features

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

Food & Drinks

  • Western Food
  • Local Food
  • Vegetarian Options
  • Beer available
  • Free Wine w/Dinner
  • Vegan Options
  • Free Soft Drinks
  • Welcome Cocktails
  • 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.


  • DIN Adaptors
  • 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

  • Year built 2022
  • Length 124 ft
  • Beam 28.5 ft
  • Max guests 22
  • Number of cabins 11
  • 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
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 8.8 Fabulous
  • Adam F
  • United States 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.
  • 8.8 Fabulous
  • jim G
  • United States 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
  • 10 Exceptional
  • Jack K
  • United States United States

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
  • 8.0 Very good
  • Tom M
  • United States 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.
  • 7.6 Good
  • Audrey H
  • Malaysia 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
  • 7.6 Good
  • Audrey H
  • Malaysia 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
  • 8.8 Fabulous
  • Kiko G
  • Brazil Brazil
Excellent crew


Recommended for
  • 9.6 Exceptional
  • Siasky B
  • Costa Rica Costa Rica
Aggressor no decepciona!

La calidad de los servicios brindado por Aggressor y el paisaje y el lugar de buceo son excepcionales. Invito a nacionales y extranjeros a visitar la Isla del Coco en el Agreessor III, el más nuevo de la flota de Aggressor en Costa Rica.

Recommended for
El barco, es el mejor y el más adaptado a los buzos
  • 8.4 Very good
  • Frank Rainer G
  • Germany Germany
Die professionell eingespielte Crew bietet den Gästen einzigartige Taucherlebnisse sowie einen äußerst komfortablen Aufenthalt an Bord.

Die Beobachtung eines Hammerhais auf relativ kurze Distanz. Bei jedem Tauchgang gab es mindestens einen Weißspitzen-Riffhai zu entdecken. Oft konnten große Schwärme von Jacks beobachtet werden. Die Organisation der Abläufe auf dem Tauchdeck ermöglichte stets eine ENTSPANNTE Vorbereitung und Nachbereitung der Tauchgänge. Ein Kaffeautomat, der zu JEDER Zeit wirklich SEHR GUTEN Kaffee ausgab.

Recommended for
Eine Crew, von der JEDER Einzelne zu JEDER Zeit professionellen und freundlichen Service bot. Die Beobachtung eines Hammerhais auf relativ kurze Distanz. Erstklassige Verpflegung.
  • 8.8 Fabulous
  • Juan Jose O
  • Mexico Mexico
Excelente viaje que hizo una experiencia agradable de convivencia con tripulacion, guias y compañeros de viaje. Repetible.

El viaje completo es memorable. Como idea para mejorar, mi cabina era la #6 y presentó problemas fe mal olor, tal vez por algún asunto de drenaje, hay que revisarlo

Recommended for
Comida, amabilidad y servicio.