The world‘s finest diving

Okeanos Aggressor II

The Okeanos Aggressor II is 120 feet of steel stability & comfort. She offers takes 22 divers in 9 cabins and offers spectacular Cocos Island diving and typical Aggressor amenities.

A word from Dom : “With spacious main deck suites and loads of indoor & outdoor living space, Okeanos Aggressor II is an excellent option for diving Cocos. She has an experienced crew & offers all the exceptional diving Cocos is known for. And, she features all the typical Aggressor amenities. You can’t go wrong !” Dominick Macan

Okeanos ii exterior opt

On Board Okeanos II

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 DOUBLE cabin
queen bed & flat screen with media player
8 lower deck TWIN / DOUBLE cabins
double bed lower & twin bed upper bunk

All feature en-suite, mirrored cabinet, wardrobe, bathrobes, hairdryer, toiletries

dive from 22 foot panga tenders
80 cubic ft. (12L) tanks (15L tanks available at extra cost)
aqualung gear rental available (please request in advance)
Americn K valves & European DIN valves
nitrox available (extra charge)
personal GPS locator
Water temperature: 72 – 82F, 22 – 28C with cooler thermoclines … 3 – 5mm wetsuit recommended

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

Aqualung rental gear & 15L tanks (please request in advance)
park & port fees
airport transfers
fuel surcharge (depending on the fuel cost rate)
Mandatory Emergency Evacuation Program Fee

A Mighty Vessel With Comfortable Appointments

Okeanos Aggressor II has 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. Also, the two suites are 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.

Travel & Cruise Logistics

All yacht departures are from Puntarenas, Costa Rica. 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 transfer 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 and you will be taken back to San Jose.

Layout & Specs

Deck plan & cabin layout … yacht specifications, equipment & safety features
Okeanos AggressorII Deckplan 780


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 dive masters 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

Itinerary & Maps

Sample itinerary & dive sites map

The itinerary for Okeanos Aggressor II is Cocos, Cocos, Cocos …. only Cocos … in all its glory.


Cocos Island – 10-night sample itinerary
Day 1 – meet in front of host hotel. Transfer to Puntarenas for boarding and departure for Cocos Island.
Day 2-3 – arrive Cocos Island, diving begins.
Day 4-9 – diving days
Day 9-10 – travel back to Puntarenas.
Day 11 – check out at 7 am and transfer to San Jose Airport or host hotels.

Cocos Top Dive Sites
A 600’ long submerged mountain, the top of the mountain is 75’ from the surface. Schooling hammerheads, mantas and schooling fish. Possible sailfish or marlin.
Big Dos Amigos
This islet features a 45-foot-high arch and 60-foot pinnacle off the southeast side. Look for rainbow runners, yellowtail snapper, bigeye jacks and lobster. Hammerheads swim between the pinnacle and arch.
Bird Island, Chatham Bay
Dove from Chatham Bay, southeast of Manuelita, this site provides a variety of marine life including Frog Fish, lobsters, morays, rays, white tip sharks and hammerheads. There is even a cleaning station.
Dirty Rock
A large island with schools of marble rays and hammerheads.
Lone Stone
Schooling marble rays and mobula rays.
The northeast corner has a sheer wall. Lots of White Tips, Marble Rays and schools of Creoles. Possible sightings: whale sharks, mating eagle rays, sail fish, mating white tip sharks, false killer whales.
Ubing Rock, Wafer Bay
This 300’ rock begins at 20’ and drops to a 110’ sandy bottom. The southeast slope attracts schooling hammerheads.

Cocos Island XL map b opt


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