Liveaboard Diving Preloader

Okeanos Aggressor II

Costa Rica

from/per day 352
  • Nitrox (extra cost)
  • Dive Tender(s)
  • Shaded Kit-up Area
  • Equipment (extra cost)
  • Camera Station
  • Alcohol


Nitrox (extra cost)
Dive Platform
Dive Tender(s)
Separate Camera Rinse
Shaded Kit-up Area
Equipment (extra cost)
Non Divers Welcome
Camera Station

On board

Liveaboard facilities

Here's a small list of what we consider to be the most important features and services on board the Okeanos Aggressor II:

Aircon Dining
Entertainment System
Indoor Dining
Local Transfers
Vegetarian Catering
Internet (extra cost)


  • Soft drinks
  • Drinking Water
  • Local Food
  • Western Food
  • Wine and Beer (included)
  • Tea & Coffee
  • Meals served Buffet Style
  • 3 meals a day
  • Snacks throughout the day
  • Fruit Juices
  • Fresh Fruit



Cabin Types*

Deluxe Stateroom From352

These 7-9m2 deluxe cabins accommodate a maximum of 2 guests, having a double bed and a single bunk above. Each cabin has private a toilet and shower, individually controlled aircon with remote control and a hair dryer.

  • Guests: 2 guests max
  • Beds: Triple (double + top bunk)
  • Bathroom: Ensuite
  • Air conditioning: Aircon (own control)
You can request your cabin type during the booking process.

Deck Plan

Boat Info

Max guests 22
Cabins 11
Bathrooms 12
Length 32 m
Beam (width) 9 m
Built in 1985
Renovated/Converted in 2010
Cruising speed 10 kn
Tenders 2 – RIBs

Boat Description

The Okeanos Aggressor II liveaboard is a 120’ yacht, built and powered for comfort, safety and stability. She is diesel-powered, cruises at 10 knots and has 110-volt power on board. Comfortable accommodations for 22 guests include 9 deluxe staterooms with double bed lower and twin bed upper, 1 master deluxe stateroom with a queen bed, and 2 suites of which one has two twin beds and the other a king bed. Each cabin features a private head and shower, and storage space for your luggage. She has a spacious salon, covered and uncovered sun deck area, chaise lounges, deck chairs, bar, grill, and a complete photo center. The onboard video format is both NTSC and PAL. Both liveaboards have a safe onboard to store valuables such as passports,cash, credit cards or anything else you would like to store. The liveaboard is not responsible for any lost, damaged or stolen items. We highly recommend extreme caution and care be taken if you plan to travel onboard with electronic equipment. 7This equipment should always be stowed after use to avoid the risk of damage.

All staterooms are air-conditioned and fitted with private toilets, showers and sinks. Breakfast (cooked to order), buffet lunch and an elegant chef prepared meal at dinner with table side service are served in addition to fresh mid morning and mid-afternoon snacks. Beverages (alcoholic and non-alcoholic) are complimentary while onboard. The yacht is equipped with hairdryers in each stateroom. Linens are changed mid-week and fresh towels are placed in each stateroom as needed. Filled tanks, weights and weight belts are included.

Email is available onboard through the satellite system. There is a charge for incoming and outgoing email. Private calls may be made from the liveaboard. When diving at Cocos Island, there is a cell tower with intermittent reception. There is no coverage in the Bat Islands or Caño Island.

The menu on both yachts is varied and plentiful, with a variety of American feasts, barbecues and local cuisine. If you have any special dietary requirements, please advise the US office as soon as possible so the yacht can adequately prepare to meet your needs. 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. Once you have arrived, please speak to the chef about any special needs. Certain special dietary and beverage requests may not be available due to the remote nature of this location.


The liveaboard has a selection includes fruit juices, soft drinks, iced water, iced tea, coffee, and a limited selection of local beer and wine, all of which are free of charge. Due to the high duty charged on liquor in Costa Rica, we suggest you bring your special brand from the U.S/International. Due to local regulations; the bar will be closed while the boat is in port. Drinking and diving do not mix. Once you consume alcohol, you become a snorkeler until the next day.


The crew, with their unique combination of talents, offers the ultimate service. While on board you may pick a buddy of your choice or dive with a crew member. There is ample storage space for your diving equipment in your personal locker. The yachts provide 80 cubic ft. tanks, weight belts and weights. All tanks have K-valves (American type), no DIN (European) valves. There are a limited number of 100 cu ft/13-liter tanks available. With advanced notice, these can be rented from another liveaboard. The cost is $90 and must be rented in advance due to availability.

Diving amenities include Nitrox (unlimited Nitrox is $150 for 10 night charters).
The panga (tender boat) is 22 feet in length. There is plenty of space for camera equipment and the  driver/deck hand will handle everything with care. Getting in and out of the water from the panga is also extremely easy. Once you've finished diving and you’re ready to get back into the panga, a crew member will assist you by taking your tank. We have a dive guide on the panga for every dive.

Important: Guests will be provided free of charge a GPS locator that operates through satellite in case of an emergency, it sends an SMS to the local office Aggressor with coordinate and to the rescue coordination center with a web link to your location.

We suggest you pack the following: mask, fins, snorkel, regulator with visible pressure gauge, depth gauge, dive computer, buoyancy compensator, and gloves. Strongly recommended: Spare mask, a diving watch, dive light, safety sausage, whistle, Dive Alert, mirror and/or other safety devices. Dive computers are mandatory. Each piece of gear should be marked with waterproof paint or tape. Due to the thermoclines and upwelling, we recommend a 3mm wetsuit as a minimum. Most divers use a 5mm wetsuit with booties and a hood.

All divers visiting Caño Island and Guanacaste and The Bat Islands are required to have diving accident insurance and are encouraged to purchase Trip Cancellation and Interruption Insurance as well.

Included in your trip price
  • Value added tax
  • Weights, belt, tank & fills
  • All meals
  • Accommodation on board
  • Dive guide
  • Airport transfers
  • Complimentary toiletries
  • Local beers and wine
What's not included in your price?
  • International / Domestic flights
  • International / Domestic airport taxes
  • Travel insurance
  • Scuba diving insurance (required)
  • Cocos Island Park fee (10 nights) 490.00 $
  • Cocos Island Park fee (8 nights) 350.00 $
  • Emergency Evacuation Plan 30.00 $
  • Airport departure tax (on departure) 29.00 $
  • Caño Island Park Fee (7 nights) 115.00 $
  • Tips for the crew
  • Onboard telecommunications
  • Diving equipment
  • Nitrox
Cancellation Policy of this Operator

121 days or more prior to departure, 20% is forfeited.
120 - 91 days prior to departure, 40% is forfeited.
90 days or less prior to departure, 100% is forfeited (no refund available)