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Okeanos Aggressor II

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The Okeanos Aggressor II is 120 feet of comfort & stability. She offers Aggressor amenities in addition to spectacular Cocos Island diving & has added Guanacaste, Bat Islands & Caño Island.

A word from Dom :  "There are 2 owner's suites on this vessel that offer extra comfort and space. As part of Aggressor Liveaboards, she offers all the amenities divers are accustomed to. A comfortable option for Cocos diving."..... Dominick Macan

On board Okeanos II

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    Okeanos Aggressor II drone shot
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    exterior dining
  • OA2 Yacht7 XLbar opt
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    lounge, dining & bar
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    twin / double stateroom
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    twin / double stateroom
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    sunset treats
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    drone shot sunset

  • 1 upper deck DOUBLE SUITE 
    king bed, picture window, 42-inch flat screen, minibar & table for dining 
    1 upper deck TWIN SUITE  
    twin beds, picture window, 42-inch flat screen, minibar & table for dining 
    1 main deck MASTER STATEROOM
    queen bed & flat screen with media player
    8 deluxe CABINS
    double bed lower & twin bed upper berth
    All staterooms feature en-suite facilities, mirrored cabinet, wardrobe, bathrobes, hairdryer, toiletries, fresh towels daily.

  • dive from 22 foot panga tenders
    80 cubic ft. tanks 
    dive deck with personal gear lockers, freshwater showers, rinse tank and camera table
    aqualung gear rental available (tell us in advance)
    Americn K valves only, no European DIN valves
    nitrox available for an extra charge
    personal GPS locator
    Water temperature: 72 - 82F, 22 - 28C with cooler thermoclines
    3 - 5mm wetsuit recommended

  •  accommodation & diving
    meals, snacks, non-alcoholic beverages
    local beer & wine served with dinner
    compressed air, tanks, weights and weight belts
    transfers from a San Jose host hotel (there are two) to Puntarenas port 

  •  airfare
    Aqualung rental gear (please request in advance)
    park & port fees
    airport transfers
    fuel survharge (depending on the fuel cost rate)
    Mandatory Emergency Evacuation Program Fee

A mighty vessel with comfortable appointments

Okeanos Aggressor II has both a large upper deck, roughly half of which is devoted to lounging with both covered and uncovered sun deck areas, furnished with chaise lounges, deck chairs, bar and grill. The two suites are also located on the upper deck.  On the main deck, a large interior salon and dining room offer down-time relaxation space for cooler days & evenings.  The master stateroom is forward of this area while the large dive deck and photo table are situated at the stern. The lower deck houses the 8 twin / double cabins.

Email is available through the satellite system and there is a charge for incoming and outgoing email.  Private calls may be made from the yacht. There is a cell tower in Wafer Bay with international reception while anchored during the charter.

The menu on board is varied with a combination of American & local cuisine and barbecues. If you have any special dietary requirements, please advise us in advance. You will wake up to fresh fruits, hot entrees, cereals and juices. Lunches are buffet-style, featuring hot soups, homemade breads, salads and sandwiches and/or entrees. Dinners are chef prepared and served each evening and include salads, vegetables, seafood, beef or chicken with a fresh homemade dessert.

Deck Plan ... Dive Map ... Technical Specifications

View the itinerary map, deck & cabin layout, yacht specificationss, equipment & safety features for Okeanos Aggressor II ..... click to see specifications



Okeanos AggressorII Deckplan 780



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Built to Lloyd’s Registry and American Bureau of Shipping Standards
Length: 120 ft.
Beam: 27 ft
Passengers: 22
Crew: 9
Cabins 11


Captains and staff are professionally licensed as required by the laws of the country in which the yacht operates and complies with and the appropriate flag state regulations and/or SOLAS (International Convention for the Safety of Life at Sea) standards. All yachts are required to follow Aggressor Fleet® Standard Operations Procedures (SOP). Dive instructors and divemasters are trained and certified by international recognized certification agencies. Each receives proficiency training and annual inspections to review safety aspects.


Generator(s) 110-208 ac voltage capable of supplying the yachts needs
SCUBA air compressors with cascade storage
Nitrox membrane system with cascade storage
Watermaker with ample storage
Support dinghies with outboard motors for shore excursions and scuba diving


Magnetic Compass
Depth sounders
Global Positioning Systems (GPS)


Multiple VHF radios
Long Range Single Side Band Radio
Satellite Phone (where necessary)
Satellite Email (where necessary)


Hang bar for safety stops (where necessary)
Complete First Aid Kit and medical supplies
D.A.N. Oxygen System with 100% demand regulator
Automatic External Defibrillator (AED)
Fire and Smoke Detection Systems
Fire extinguishers and Fire Fighting Equipment
EPIRB – Emergency Position Indicating Radio Beacon
Life rafts & rescue craft
Life jackets equipped with lights and whistles for all passengers and crew
Full Complement of Safety and Rescue Equipment
Emergency flares

Brief overview of what to expect

All yacht departures are from Puntarenas. Guests need to arrive the day before the charter start date and overnight in San Jose, Costa Rica. You may choose to stay at one of the recommended host hotels (Holiday Inn Escazu or Holiday Inn Express Forum) or at another hotel of your choice.  Please note that pick-ups for transer to the boat are only from these two hotels. You will be met by an Aggressor representative on the day of departure at a pre-set time for the group transfer.  Boarding depends on the tide schedule. Immediately after boarding the yacht departs for its crossing to Cocos Island. The crossing takes roughly 36 hours and you can expect to arrive at the island around dawn on Day 3. After a full seven days of diving, the Okeanos Aggressor II returns back to the dock in Puntarenas.


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Comprehensive dive insurance
Full travel insurance plans
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24/7 medical hotlines

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