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Dec-May

Cocos Islands

UD Rating – 3 Star

Okeanos Aggressor

Spacious yacht designed for diving around the Cocos Island.

The Okeanos Aggressor is a real treat for those of you with the constitution to take on such a trip. Cocos is most suitable for experienced divers. But well worth it for the schools of pelagics.

The Okeanos Aggressor I is a spacious adventure yacht designed for diving around the Cocos Island. She was built for comfort and powered for safety and stability with her diesel engines. The captain and the 8 crew members are all professionally licensed and can help with any questions or queries you may have regarding the diving or the boat. There is a mini-boutique onboard where guests can purchase souvenirs at a small price and a variety of nightly activities available for you to enjoy in the salon. Night dives, fish identification slide shows, movies, books and games are a few of the events you can take part in the evening.

The boat has a spacious salon that accommodates 22 guests with a partially shaded sun deck that features chaise lounges, deck chairs, a wet bar and a grill. The 9 double cabins and 1 quad cabin are all air conditioned with en-suites, hairdryers, port hole, security box, TV/DVD and storage space for luggage. A large dive deck is located at the rear of the boat with 2 rinse tanks and plenty of dive lockers for personal gear. There is a large 3 tier camera table with a strobe charging station that is available for guest’s camera and video equipment however you are advised to take your own battery chargers.

The food onboard is a variety of Western cuisine, barbeques and local cuisine to suit every guest’s needs. The chef is happy to cater to special dietary requirements if known well in advance so they can prepare. The breakfast onboard will be a mixture of fresh fruits, hot entrees, cereals and juices with the lunches being served buffet style with a variety of soups, breads, salads and sandwiches. Dinners are chef prepared and served every evening consisting of salads, vegetables, seafood, beef or chicken with the desert being homemade every day whilst mid-morning and mid-afternoon snacks are provided for guests in between dives. The selection of beverages aboard include fruit juices, soft drinks, iced water and tea, coffee and a selection of local beer and wine that are complimentary.

Deluxe Stateroom

A comfortable stateroom with a port hole, two twin bunk beds stateroom 3 - 6, a double bed and single bed (top-bunk) stateroom 7 - 11 with a private head and shower. Your stateroom is the perfect place to read a book, nap in between dives and fully recharge for the next day.

  • Two twin bunk beds or a double bed and single bed (top-bunk)
  • Amenities from bathrobes to individual climate control
  • Services from morning beverage service to nightly turndown service

Quad

A comfortable stateroom with a port hole, two double beds (lower) and two single twin beds (upper) bunk-style with a private head and shower. Your stateroom is the perfect place to read a book, nap in between dives and fully recharge for the next day.

  • Two double beds (lower) and two single twin beds (upper)
  • Amenities from bathrobes to individual climate control
  • Services from morning beverage service to nightly turndown service

Air Temperature

Water Temperature

Route Options

Cocos Islands are not to missed the rocky pinnacles are beacons for big animals and big action. Schooling hammerheads, countless white-tip sharks, mantas, tuna and even whale sharks.

The Okeanos Aggressor I offers 10 night and a few 8 night itineraries around Cocos Island departing from Puntarenas where the 300 mile journey begins. The journey takes approximately 30 to 36 hours to get to the island. Throughout the trip, dives will be done from large dive tenders with most of the sites having mild currents attracting plenty of large marine life.

The main attractions in Cocos are the hammerhead sharks, rays, mantas, turtles and large schools of fish with the occasional sighting of whale sharks, marlin and bottle-nose dolphins. The ocean floor is a volcanic rock and most of the action takes place 15 to 30 meters down where the visibility is between 24 to 30 meters.

Special Sightings - Whale Sharks, mating Eagle Rays, Sail Fish, mating White Tip Sharks, False Killer Whales.

Vessel Details

Year Built 1972 and refurbished in 2007
Guest Numbers 22
Length & Beam 33.5 meters long and 7 meter beam
Speed 10 knots
Engines 2 x Deutz diesel 300 hp engines
Generators 1 x Cat 55kw and 1 x 100kw 208-110 volts generators
Number of Cabins 10 large cabins (9 deluxe and 1 quad)
Navigation & Communication Systems 72-mile radar with alarm system/ 16-mile radar with alarm system/ 2 compass/ depth sounder with alarm/ weather facsimile/ 2 GPS - global positioning system/ autopilot with electronic compass/ 2 VHF Radios/ 2 SSB radio - single side band radio/ iridium satellite phone and computer station with email access
Salon & Dining Area Large air conditioned salon accommodating all 22 guests comfortably
Entertainment Entertainment center featuring a TV, DVD/CD, home theatre system, games and an assortment of movies
Single Supplement 65%
Air Compressors 2 x mako K14 and K15 air compressors with cascade storage
NITROX Available onboard - USD150 per trip
Equipment Rental Scuba diving equipment rental available onboard - please see price list below
Medical Oxygen & First Aid First AID Kit and D.A.N oxygen system
Dive Deck Spacious dive deck with rinse tanks and storage lockers
Full Set USD75
BCD, regulator & computer USD150
Regulator USD60
Dive Computer USD60
Mask/fins/snorkel USD50
Wetsuits USD50
Night dive light USD8 per ningt
Nitrox fills USD150 per 10 night trip
Please note All equipment rental prices are for 7 night charters except the dive light which is per night.

Available Experiences

Resorts for Multi-Centre

Marcelina

Saturday, 28 April 2012

Mr Moss and Club on-board the Okeanos Aggressor

Mr Moss and Club went on a liveabord on Costa Rica.

Mr Moss and Club on-board the Okeanos Aggressor

What Our Customers Have To Say

Reviews from our Clients, Journalists, Photo Pro's and our own Experts

Our reviews and blogs are an additional guide to evaluate of the holiday is exactley what you are looking for or not. Some love an Eco-Resort, some love air-con and a flat screen TV, we aim to ensure you get what you are looking for, at great value for money.

10 days on board the Okeanos Aggressor

If you’re looking for a tour operator who is efficient, knowledgeable and super organised, Marcelina , Ultimate Diving is the place to go! Pre-trip, nothing was too much trouble, and the trip itself? Amazing. Every little detail was taken care of, and of course, the diving was incredible.

Amy S

Okeanos Aggressor followed by Arenal Volcano & Monteverde Cloud Forest Tour

Please find enclosed a small token of our appreciation for the organisation of the trip to Cocos Island. The whole trip went without a hitch. Every bus appeared on time, every hotel was expecting us, clean and comfortable and all the guides were knowledgeable and friendly. Without exception though, was Okeanos Aggressor. The boat, crew, food and accommodation were first class and to be recommended to everyone and anyone. The diving lived to up expectations (although the crew reckoned it was only average, so another trip could be on the cards). The weather was also exceptional as we had calm conditions all time and very little rain. I could go on and on but just want to thank you once more for an exceptionally well organised trip and would (will) certainly recommend Ultimate Diving to all.

Mr Moss and Club

7 nights on-board the Okeanos Aggressor

We had a really good time, the crew on the boat were fantastic, the food was amazing and the diving was superb, a lucky combination of all on a liveaboard. On our check dive we had mantas, schools of hammerheads and dolphins. Other sightings included tiger and Galapagos sharks, a phenomenal experience! After the first dive and seeing so many sharks, we thought it was quite nice and almost took them for granted. The diving here was spectacular. The boat was not glamorous but very clean and comfortable. The cabins were of reasonable size with a double and a single bunk allowing for extra storage space. Towels were changed every couple of days and after dives you get a guide waiting for you with a nice hot towel and great snacks.

Mr & Mrs Underwood

Bajo Alcyone

Cocos Island, Costa Rica

Bajo Alcyone is the place to see the Hammerheads amongst other pelagic. The abundancy of resident sea life makes this site one of the island’s signature dives. Mantas, Whitetip Sharks, Whale Sharks, Silky, Blacktip Sharks, and hundreds of schooling Hammerheads are everywhere. And underwater plateau, discovered by Cousteau when he visited Cocos Island, is home to a variety of sharks.

  • Min Dives: 4
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 25m

Dirty Rock

Cocos Island, Costa Rica

Located near Wafer Bay, Dirty Rock is an impressive and exciting dive. Noted as one of our guests’ favourites, here you will come up close and personal with Whale Sharks that often cruise around this site.

Dirty Rock is perhaps best known for the hundreds of Marble Rays and huge schools of Jacks that can be seen here. A swim through one of the schools is definitely worth the trip!

  • Min Dives: 9
  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 39m

Big Dos Amigos

Cocos Island, Costa Rica

Dos Amigos Grande is better known for its huge arch, a swim through so big that an entire diving group can move through it at the same time, Marble Rays swimming among divers, Eagle Rays feeding or mating, and schooling Hammerheads are typical scenarios at this memorable dive site.

  • Min Dives: 4
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Lone Stone

Cocos Island, Costa Rica

There are some nice shark photo opportunities throughout the dive, and a very cooperative marbled stingray. Slowly swimming through the huge rocks, guests will noticed a vertical crack in the reef, about 25-30 high and perhaps five feet wide. With shimmering sunlight streaming down from fissures in the top, you could see the fish, hiding from the current, and the ever-present predators. There are silver Snappers, Yellow Grunt, Red Cardinal Fish, and big Trumpet fish in one vertical school.

  • Min Dives: 9
  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 30m

Submerged Rock

Cocos Island, Costa Rica

Underwater, this rock plunges down both sharply and gradually. It is broken up with large ledges, some with sandy bottoms, and an outer pinnacle. The colourful, prolific fish life gives relief to the harsh contours of the reef. Sometimes the fish gather in such numbers that they momentarily blot out the sun.

  • Min Dives: 4
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Lobster Rock

Cocos Island, Costa Rica

On this finger-like rock, divers can easily approach large white tips lying on the bottom in great numbers. In the deep sandy area surrounding it, the elusive rosy-lipped batfish can be found between 90 and 120 feet.

Marine Life: White tips, marble rays, manta rays, eagle rays, red lip batfish, frogfish, garden eels

  • Min Dives: 9
  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 33m

Manuelita

Cocos Island, Costa Rica

Manuelita dive site has a boulder formation where you will find hammerhead sharks along with other marine life including lots of White Tips, Marble Rays and schools of Creoles. A great day and night dive. Known as the dive site that never sleeps!

  • Min Dives: 10
  • Dive Type: Deep Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30

Ubing Rock, Wafer Bay

Cocos Island, Costa Rica

Located at Wafer Bay, the southeast slope of Ubing Rock attracts schooling Hammerheads. This rock drops to a sandy bottom. The rock begins at 20m and falls all the way to 110m.

  • Min Dives: 10
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30m

Bird Island, Chatham Bay

Cocos Island, Costa Rica

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.

  • Min Dives: 10
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30M

Manta Corner

Cocos Island, Costa Rica

South of Cocos Island. The reef is about 27 metres deep if you want to full presence of manta rays! The reef is believed to be part of the submerged mountain range. It can be a boat, drift or deep dive.

  • Min Dives: 10
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 33m

Little Dos Amigos

Cocos Island, Costa Rica

Known for being a hammerhead cleaning station. Located south-east of Cocos Island, below Big Dos Amigos dive site. The visibility is 20m. This dive site often suprises divers as the open sea current first reaches the island at this point bringing in a wide variety of marine life.

  • Min Dives: 10
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30m

Cabo Atevida

Cocos Island, Costa Rica

Remote from other dive sites on the east side of the island but also attracted by hammerheads like most Cocos dive sites. The marine life has high density and has a wide variety living or passing here.

  • Min Dives: 10
  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30m
Dates Duration Route Room Type Price
13 Oct 2018
23 Oct 2018
10 Nights Cocos Islands Deluxe Stateroom £4,079
13 Oct 2018
23 Oct 2018
10 Nights Cocos Islands Quad £6,374
8 Dec 2018
18 Dec 2018
10 Nights Cocos Islands Quad £4,079
8 Dec 2018
18 Dec 2018
10 Nights Cocos Islands Deluxe Stateroom £4,079
22 Dec 2018
1 Jan 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
22 Dec 2018
1 Jan 2019
10 Nights Cocos Islands Quad £4,079
5 Jan 2019
15 Jan 2019
10 Nights Cocos Islands Quad £4,079
5 Jan 2019
15 Jan 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
19 Jan 2019
29 Jan 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
19 Jan 2019
29 Jan 2019
10 Nights Cocos Islands Quad £4,079
31 Jan 2019
8 Feb 2019
8 Nights Cocos Islands Quad £4,079
31 Jan 2019
8 Feb 2019
8 Nights Cocos Islands Deluxe Stateroom £4,079
11 Feb 2019
21 Feb 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Feb 2019
21 Feb 2019
10 Nights Cocos Islands Quad £4,079
6 Mar 2019
16 Mar 2019
10 Nights Cocos Islands Quad £4,079
6 Mar 2019
16 Mar 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
18 Mar 2019
25 Mar 2019
7 Nights Cocos Islands Deluxe Stateroom £4,079
18 Mar 2019
25 Mar 2019
7 Nights Cocos Islands Quad £4,079
28 Mar 2019
8 Apr 2019
10 Nights Cocos Islands Quad £4,079
28 Mar 2019
8 Apr 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Apr 2019
21 Apr 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Apr 2019
21 Apr 2019
10 Nights Cocos Islands Quad £4,079
7 May 2019
17 May 2019
10 Nights Cocos Islands Quad £4,079
7 May 2019
17 May 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
21 May 2019
31 May 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
21 May 2019
31 May 2019
10 Nights Cocos Islands Quad £4,079
2 Jun 2019
12 Jun 2019
10 Nights Cocos Islands Quad £4,079
2 Jun 2019
12 Jun 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
26 Jun 2019
6 Jul 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
26 Jun 2019
6 Jul 2019
10 Nights Cocos Islands Quad £4,079
9 Jul 2019
19 Jul 2019
10 Nights Cocos Islands Quad £4,079
9 Jul 2019
19 Jul 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
1 Aug 2019
11 Aug 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
1 Aug 2019
11 Aug 2019
10 Nights Cocos Islands Quad £4,079
24 Aug 2019
3 Sep 2019
10 Nights Cocos Islands Quad £4,079
24 Aug 2019
3 Sep 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
9 Oct 2019
29 Oct 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
19 Oct 2019
29 Oct 2019
10 Nights Cocos Islands Quad £4,079
4 Nov 2019
14 Nov 2019
10 Nights Cocos Islands Quad £4,079
4 Nov 2019
14 Nov 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Nov 2019
26 Nov 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Nov 2019
26 Nov 2019
10 Nights Cocos Islands Quad £4,079
4 Dec 2019
14 Dec 2019
10 Nights Cocos Islands Quad £4,079
4 Dec 2019
14 Dec 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Dec 2019
26 Dec 2019
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Dec 2019
26 Dec 2019
10 Nights Cocos Islands Quad £4,079
28 Dec 2019
7 Jan 2020
10 Nights Cocos Islands Quad £4,079
28 Dec 2019
7 Jan 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
9 Jan 2020
19 Jan 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
9 Jan 2020
19 Jan 2020
10 Nights Cocos Islands Quad £4,079
30 Jan 2020
9 Feb 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
30 Jan 2020
9 Feb 2020
10 Nights Cocos Islands Quad £4,079
22 Feb 2020
3 Mar 2020
10 Nights Cocos Islands Quad £4,079
22 Feb 2020
3 Mar 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
7 Mar 2020
17 Mar 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
7 Mar 2020
17 Mar 2020
10 Nights Cocos Islands Quad £4,079
21 Mar 2020
31 Mar 2020
10 Nights Cocos Islands Quad £4,079
21 Mar 2020
31 Mar 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
4 Apr 2020
14 Apr 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
4 Apr 2020
14 Apr 2020
10 Nights Cocos Islands Quad £4,079
18 Apr 2020
28 Apr 2020
10 Nights Cocos Islands Quad £4,079
18 Apr 2020
28 Apr 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
9 May 2020
19 May 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
9 May 2020
19 May 2020
10 Nights Cocos Islands Quad £4,079
23 May 2020
2 Jun 2020
10 Nights Cocos Islands Quad £4,079
23 May 2020
2 Jun 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
6 Jun 2020
16 Jun 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
6 Jun 2020
16 Jun 2020
10 Nights Cocos Islands Quad £4,079
27 Jun 2020
7 Jul 2020
10 Nights Cocos Islands Quad £4,079
27 Jun 2020
7 Jul 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Jul 2020
21 Jul 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Jul 2020
21 Jul 2020
10 Nights Cocos Islands Quad £4,079
8 Oct 2020
18 Oct 2020
10 Nights Cocos Islands Quad £4,079
8 Oct 2020
18 Oct 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
31 Oct 2020
10 Nov 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
31 Oct 2020
10 Nov 2020
10 Nights Cocos Islands Quad £4,079
14 Nov 2020
24 Nov 2020
10 Nights Cocos Islands Quad £4,079
14 Nov 2020
24 Nov 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
28 Nov 2020
8 Dec 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
28 Nov 2020
8 Dec 2020
10 Nights Cocos Islands Quad £4,079
19 Dec 2020
29 Dec 2020
10 Nights Cocos Islands Quad £4,079
19 Dec 2020
29 Dec 2020
10 Nights Cocos Islands Deluxe Stateroom £4,079
29 Mar 2021
8 Apr 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
29 Mar 2021
8 Apr 2021
10 Nights Cocos Islands Quad £4,079
13 Apr 2021
23 Apr 2021
10 Nights Cocos Islands Quad £4,079
13 Apr 2021
23 Apr 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
27 Apr 2021
7 May 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
27 Apr 2021
7 May 2021
10 Nights Cocos Islands Quad £4,079
18 May 2021
28 May 2021
10 Nights Cocos Islands Quad £4,079
18 May 2021
28 May 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
2 Jun 2021
12 Jun 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
2 Jun 2021
12 Jun 2021
10 Nights Cocos Islands Quad £4,079
16 Jun 2021
26 Jun 2021
10 Nights Cocos Islands Quad £4,079
16 Jun 2021
26 Jun 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
10 Jul 2021
20 Jul 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
10 Jul 2021
20 Jul 2021
10 Nights Cocos Islands Quad £4,079
24 Jul 2021
3 Aug 2021
10 Nights Cocos Islands Quad £4,079
24 Jul 2021
3 Aug 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
6 Aug 2021
16 Aug 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
6 Aug 2021
16 Aug 2021
10 Nights Cocos Islands Quad £4,079
28 Aug 2021
7 Sep 2021
10 Nights Cocos Islands Quad £4,079
28 Aug 2021
7 Sep 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Sep 2021
21 Sep 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
11 Sep 2021
21 Sep 2021
10 Nights Cocos Islands Quad £4,079
25 Sep 2021
5 Oct 2021
10 Nights Cocos Islands Quad £4,079
25 Sep 2021
5 Oct 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Oct 2021
26 Oct 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
16 Oct 2021
26 Oct 2021
10 Nights Cocos Islands Quad £4,079
30 Oct 2021
9 Nov 2021
10 Nights Cocos Islands Quad £4,079
30 Oct 2021
9 Nov 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
13 Nov 2021
23 Nov 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
13 Nov 2021
23 Nov 2021
10 Nights Cocos Islands Quad £4,079
4 Dec 2021
14 Dec 2021
10 Nights Cocos Islands Quad £4,079
4 Dec 2021
14 Dec 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
18 Dec 2021
28 Dec 2021
10 Nights Cocos Islands Deluxe Stateroom £4,079
18 Dec 2021
28 Dec 2021
10 Nights Cocos Islands Quad £4,079