Liveaboard.com

Okeanos Aggressor II, Costa Rica

Rating 8.6 out of 10 8.6 Fabulous
from $ 504 / day Check dates

“The chefs and the food were amazing, no doubt I gained a few kilos on my vacation :). ”

Camryn S, Flag of United States United States

Highlights

  • Year-round diving to Cocos Island
  • Dive one of the most exhilarating dive destinations in the world in comfort and luxury
  • Regular sightings of schooling hammerheads, countless white-tip sharks, manta rays, tuna, and whale sharks

The Okeanos Aggressor II liveaboard was built for comfort and stability to offer year-round diving at the remote islands of Costa Rica. The yacht provides comfortable accommodation for 24 guests in 12 en-suite cabins. Eight deluxe staterooms are located on the lower deck, and there is a double lower bed and twin upper bunk-style bed. On the main deck is the master stateroom with a queen bed, and on the upper deck are two suites that have either two twin beds or one king bed.

Choose your departure date

Date
Price
05 Sep
11 Days / 10 Nights
$ 6,399
FULL
23 Sep
9 Days / 8 Nights
$ 5,399
FULL
22 Oct
11 Days / 10 Nights
$ 6,399
FULL
14 Nov
11 Days / 10 Nights
$ 6,399
FULL
04 Dec
11 Days / 10 Nights
$ 6,399
FULL
26 Dec
11 Days / 10 Nights
$ 6,399
FULL
20 Jan
11 Days / 10 Nights
$1000 OFF! Rates include discounts. Valid until August 30, 2026.
$ 5,549 Deal
Select Cabin only 2 spaces left
16 Feb
11 Days / 10 Nights
$ 6,549
FULL
10 Mar
11 Days / 10 Nights
$ 6,549
FULL
03 Apr
11 Days / 10 Nights
$1000 OFF! Rates include discounts. Valid until August 30, 2026.
$ 5,549 Deal
Select Cabin available
01 May
11 Days / 10 Nights
$ 6,549
FULL
25 May
11 Days / 10 Nights
$ 6,549
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: Chamber Fees ($30), Fuel Surcharge ($140-180 / trip), National Park Fees ($350-630), Port Fees.

Optional Extras: Dive Insurance, Travel Insurance, Gratuities, Airport Transfer, Extra Dives, Nitrox, Nitrox Course, 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 You're getting the lowest rate. We work closely with the boat operators on a daily basis to deliver you the best possible rates. In case you find our rate cheaper somewhere else we will either match it or beat it.

Drawings & Vessel Layouts

#deckplan floorplan

Cabin Types

Okeanos Aggressor II Reviews

  • Rating 8.6 out of 10
  • 8.6 Fabulous
  1. Vessel
    7.3
  2. Crew
    9.3
  3. Food
    9.5
  4. Diving
    8.9
  5. Value
    7.7
  • Rating 7.6 out of 10
  • 7.6 Good
  • Rick S
  • Flag of United States United States

Meh

The liveaboard trip was a mixed experience. Given the significant cost of the trip, I had high hope's particularly for the wildlife encounters that this destination is known for. I understand that El Niño conditions and unusually warm water could affect marine life and that nature is, of course, unpredictable. However, it was still disappointing that we did not see any whale sharks, saw only one manta, and encountered far fewer hammerheads than expected based on how the trip was advertised. Another disappointment was the repeated use of the same dive sites. We were told several times that these were essentially the only options available to us by the Rangers, but many were left wondering whether that was truly the case or whether there were other considerations, such as convenience or logistics. A couple of the sites were particularly underwhelming and did not feel worthwhile given the time and expense involved in getting there. That said, when we did encounter the hammerheads, it was absolutely incredible. Those dives were the highlight of the trip and reminded us why we had chosen this destination in the first place. The crew also worked within the conditions they were given, and we recognize that they cannot control the wildlife or the effects of El Niño. Overall, though, the experience fell short of what I had hoped for and what I felt was represented when I booked the trip. The exceptional hammerhead encounters were unforgettable, but considering the very high price, the limited variety of dive sites and the lack of several of the marquee species made the trip feel disappointing overall. I would recommend that future guests go in with realistic expectations about how much the conditions and site availability can affect the experience.

Recommended for
Crew. Food. Diving when it was good.
  • Rating 6.0 out of 10
  • 6.0 Review score
  • Sophie B
  • Flag of United Kingdom United Kingdom

You're there for the diving, not the vessel

Thoroughly enjoyed this once in a lifetime experience to Cocos but feel the provider is sitting on a monopoly of being on of the few boats that can go to Cocos Island; the most expensive liveaboard I've been on and one of the lowest quality in terms of boat and service

Recommended for
One of the sharkiest places on earth. Walls of hammerheads, despite El Niño. Varied pelagic life.
  • Rating 10 out of 10
  • 10 Exceptional
  • Ruth P
  • Flag of United Kingdom United Kingdom

Great diving. Great food. Brilliant adventure

Diving was brilliant. Cocos Island is cool, so many waterfalls. The diving was really well organised, the staff on the boat worked really hard. We were worried about the food, as my husband has Coeliacs, but the attention to detail on this was superb, they brought out gluten free options whenever required. Also the staff at Liveaboard.com were great, they jumped straight onto a mix up with my booking, it was really easy to get hold of them on the phone, and the mix up was sorted straight away.

Recommended for
Very relaxed atmosphere. Catered brilliantly for gluten free. Well organised.
  • Rating 9.2 out of 10
  • 9.2 Superb
  • Alexander S
  • Flag of Austria Austria

awesome and unforgettable dives - big THX!

big thx to carlos & crew! best was the relaxed and flexible and friendly crew & nice boat!

Recommended for
tauchen, tauchen tauchen und die super crew / staff!

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