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Okeanos Aggressor II, Costa Rica

Rating 8.5 out of 10 8.5 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
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
14 Jun
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).

Optional Extras: 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 8.5 out of 10
  • 8.5 Fabulous
  1. Vessel
    7.3
  2. Crew
    9.2
  3. Food
    9.4
  4. Diving
    8.8
  5. Value
    7.5
  • Rating 7.2 out of 10
  • 7.2 Good
  • Stephanie H
  • Flag of United States United States

Excellent crew, guides, and dive operation made for a fun and memorable Cocos experience despite an aging boat, small shared cabins, and El Niño-affected marine life.

The crew was wonderful and worked incredibly hard to make the trip enjoyable. The dive guides were excellent, and the service was outstanding. Before each dive, our tanks were swapped, BCDs were set up, and everything was ready to go—we simply had to hop into the Zodiac, do a quick gear check, and start diving. The dives themselves were a lot of fun, with deep profiles, negative entries, and, of course, the opportunity to see the famed hammerheads. The boat was older than I expected, and the shared cabins were quite small and could have been cleaner. We also experienced some issues with the AC leaking. The food was decent overall, and the sushi celebration prepared by the chef mid-trip was a particularly nice touch. Conditions and marine life were affected by El Niño during our trip, but the guides did a great job of keeping the experience positive and making the most of what we encountered. Overall, the crew, dive operation, and service were the highlights of the trip. PS: One unexpectedly wonderful perk was the consistent high-speed internet (40 USD for 8GB, if I recall) on the 36-hour crossing that enabled me to work the whole way over and back - it saved me a few days of PTO!

Recommended for
Great service from the staff re: diving gear/setup. Fun, stimulating dives around a beautiful island. Consistent internet on the crossings so I could even work to save PTO days..
  • Rating 10 out of 10
  • 10 Exceptional
  • Nasira (Nancy) G
  • Flag of France France

The dives were beautiful. The staff was discreet, efficient, professional and very pleasant, we had an unforgettable cruise stay. Thank you Manuel, Favien, Lewis, Hannibal, Carlos, without or

The best moments are the dives in Alycion with the encounter with the herd of hammerhead sharks, Galapagos sharks. Magnificent dives.!!!!!

Recommended for
Dives - meals - comfort of the boat.
Translated from French
  • 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 8.4 out of 10
  • 8.4 Very good
  • Fabian S
  • Flag of Germany Germany

Wahnsinnstauchplätze und riesige Galapagoshaie

The absolut highlihts of this trip were the schools of hummerheads, the very closed big fat galapagos sharks and fantastic guests. The hospitality of the crew was amazing. The best liveaboard food we ever had on a liveaboard! Additional a very good organisation. Coco`s is not the cheapest place to dive but one of the best of value for money! I strongly recommend it!.

Recommended for
the galapagossharks, the guests and the crew

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