Cayman Aggressor IV, Cayman Islands



  • Recently undergone a remodel
  • Year-round diving in the amazing Cayman waters
  • Diving at all 3 Cayman Islands - Grand Cayman, Little Cayman and Cayman Brac
  • Hot tub on the sun deck

The M/V Cayman Aggressor IV is a 33mtr/108ft, dive liveaboard scheduling year-round, 7 night/8 day diving cruises in the Cayman Islands. It has 9 recently refurbished air-conditioned, ensuite cabins which include 1 large master suite with king-size bed, 6 deluxe twin bed and 2 twin bunk-style staterooms. There is a spacious indoor salon and dining area and guests can also enjoy the large partially covered sun deck with lounge and deck chairs, hot tub, bar service and CD/stereo player.

Aboard the Cayman Aggressor IV, divers will explore the walls and shipwrecks of Grand Cayman, Little Cayman and Cayman Brac including the Russian Destroyer, Bloody Bay Wall, Stingray City, Northwall, Southwall, Kittiwake and Doc Polson wrecks. Frequent marine visitors to these sites are barracuda, turtles, eagle rays, reef sharks, grouper, stingrays, eels and tarpon. Scuba diving with the Cayman Aggressor IV offers at least 5 days of diving including night dives. The Cayman Islands boasts some of the most spectacular wall & wreck dives in the Caribbean. Diving amenities include a large swim platform with personal gear lockers, air/nitrox fill stations, rinse tanks, a camera table with low-pressure air hoses and 2 warm freshwater showers.

Topside, an attentive Cayman Aggressor IV crew is on hand to ensure the comfort and satisfaction of up to 18 guests. The onboard menu features a variety of American fare and local cuisine. Soft drinks, iced tea, beer, and wine are complimentary.

Book online or speak with one of our agents to reserve your Cayman Aggressor IV liveaboard dive holiday.

Choose your departure date


Included: VAT, Drinking Water, Soft drinks, Tea & Coffee, Wine with Dinner, Full-Board Meal Plan (All meals), Snacks, Diving Package, Cabin Towels, Complimentary Toiletries.

Required Extras: Fuel Surcharge (150 USD per trip), Port Fees (110 USD per trip).

Optional Extras: Dive Insurance, Travel Insurance, Gratuities, Airport Transfer, Hotel Transfer, Alcoholic Beverages, Extra Dives, Nitrox Course, Rental Gear, Scuba Diving Courses.

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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Boat features

  • Camera Station
  • Audio & video entertainment
  • TV in cabins
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Non-Diver (Snorkeler) Friendly
  • Warm Water Showers
  • Outdoor Dining
  • Camera room with table and charging point
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms
  • Non-Smoking Rooms
  • Outside Showers
  • Seaview Cabins
  • Rooms with Balcony
  • Snorkeling Equipment
  • Separate Rinse for u/w Camera
  • Leisure Deck
  • Bar
  • BBQ Area
  • Available for Charter
  • Jacuzzi / Hot Tub

Food & Drinks

  • Western Food
  • Local Food
  • Buffet style
  • Beer available
  • Free Wine w/Dinner
  • Free Soft Drinks
  • Fine Cuisine
  • Full-board Option

If you have any specific dietary requirements whilst on-board your cruise, you can add this to your special requests on step 2 of the booking form. We advise limiting these requests to religious beliefs or food allergies.


  • Nitrox available
  • Rinse Hoses
  • Dive deck
  • Tenders for diving
  • Shaded Diving Area

The crew speaks English.

Gear Rental

There is diving gear available on this boat. Please provide your rental needs on the booking form. See below for further details on inclusions and pricing. Show prices.

Drawings & Vessel Layouts

#deckplan floorplan

Boat Specifications

  • Length 108 feet
  • Beam 22 feet
  • Cruising speed 10 knots
  • Max guests 18
  • Number of cabins 9
  • Number of bathrooms 9
  • Tenders 1 of 15 ft x 4 ft

Boat Navigation and Safety

  • Radar
  • Depth Sounder
  • GPS
  • Radio VHF/DSC/SSB
  • E.P.I.R.B. Distress System
  • Life Vests
  • Fire Alarm & Fire Extinguishers
  • Oxygen
  • First Aid Kits
  • Satellite & mobile phones
  • Bilge pump alarm
  • Search light
  • Crew trained in first aid
  • Emergency flares

Cayman Aggressor IV Reviews

  • 9.2 Superb
  • 19 Verified Reviews
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 10 Exceptional
  • Charlie C
  • United States United States
The best of three Aggressors...


Recommended for
1)Captains leadership skills 2) chefs skills in the kitchen, 3) a really fun stewardess
  • 10 Exceptional
  • Eric O
  • United States United States
The crew made my first time live aboard experience a great one.

It was my first live aboard experience and because of the good time and the great service from the crew it will not be my last.

Recommended for
The service from the crew was first class, the food was excellent and the boat was great to dive from
  • 7.6 Good
  • David M
  • United States United States
Great food, mediocre diving, and yet a truly blissful vacation.

Overall it was a good trip, the staff were cordial but not overly friendly or prone to take an interest in guests, the diving was ok, it was very repetitive and little novelty in terms of what we saw from one site to the next. The food was very good and plentiful.

Recommended for
Food, the opportunity to make my own schedule, and the looking after and emphasis on safety.
  • 8.4 Very good
  • United States United States
A great experience!


Recommended for
The crew was fantastic! The Cayman Islands are some of the best diving areas in the world. Ahh, the food!
  • 9.6 Exceptional
  • Christina D
  • United States United States
The Cayman boat was fun and Naill and his brother ran it well.

The diving.

Recommended for
The staff had just the right mix of professionalism and warmth. The guests comfort was primary. The food was good.
  • 9.6 Exceptional
  • Jason F
  • United States United States
Fantastic introduction to liveaboards, instantly hooked!

Diving the Kittiwake,Towering Coral structures & swim through's

Recommended for
Diving, Flexibility to food allergy (great food), Service of Crew-attention to detail
  • 9.6 Exceptional
  • dean H
  • United States United States
as advertised/expected

nothing happened, which was just perfect. that's why i went to cayman.......nothing happens there except warm calm water. if i want excitement i'll book galapagos or palau.

Recommended for
the staff, the food, the crystal clear 84 degree water
  • 9.2 Superb
  • Anand P
  • United States United States
Couldn't have asked for a better first liveaboard.

-Captain + company were hilarious -Nitrox + night diving -Safe environment for me to take my buddy (pretty new diver) -Prepping and cleaning up gear was SUPER easy. Cabin Comfort - only thing that was uncomfortable was the difference in temperature between top and bottom bunks. It ended up being too cold on bottom or a little warm up top. Value for money - we lost a day of diving due to the weather. Otherwise, great.

Recommended for
1) The crew - treated us very well. 2) The dive site briefings and the guides. 3) Other people on the boat.
  • 9.2 Superb
  • Craig S
  • United States United States
Hurricane delayed dive trip

My wife and I just returned from our first live aboard dive trip and our conclusion was, awesome. This is one of the few dive operations i have seen that put safety first and foremost so evident by the Captain's decision to stay in port. We were delayed two days from leaving port due to high winds and rough sea state. The captain assessed the situation daily with safety number one, kept us informed, and made the most of poor weather. Island tours were provided by the crew for the guests which were very informative and enjoyable. When we finally were able to get underway diving became the focus. We went to as many sites as we could in the given time frame. Dived the Kittywake, fed stingrays, and saw abundant sea life. When guest equipment problems happened the crew was attentive and solved problems efficiently so all could continue to dive. Food was top notch prepared by an excellent chef. During non-diving time crew and guest were sharing experiences and crew answered questions about Grand Cayman. All in all the trip was a success and a high light of our dive career. Several days after we returned home, to our surprise, Aggressor issued vouchers generously covering the missed days of diving. We have already booked a return trip to the Cayman Aggressor IV and looking forward to that trip.

Recommended for
1. the crew 2. Cayman dive sites 3. On board food
  • 8.8 Fabulous
  • David D
  • United States United States
Great week on the Cayman Aggressor

Cannot say enough about the service provided by the crew on board the Cayman Aggressor. Hope all Aggressor boats are this good as I have booked a Belize trip for next year.

Recommended for
Fabulous service, great boat, good diving
  • 10 Exceptional
  • Gregory D
  • United States United States

The Great Wall

Recommended for
Staff, food, dive site
  • 8.0 Very good
  • Giancarlo D
  • United States United States
Our experience was great food and Service with below average diving

-Poor weather with minimal dive locations -Crew was always concerned with safety and our enjoyment -wonderfully creative food menu -uncomfortable bed with top buck unsleepable -request for extra items response was immediate -intimacy of dining salon made for large family togetherness -hot shower on swim deck was awesome -Aubrie’s attention to detail was first rate -All crew worked non stop to make our stay memorable -extremely disappointed with not achieving advertised itinerary (little Cayman and Cayman Brac) -unfortunate chain of events on the last day because of commotion caused by new boat (Basically ignored most of Friday because crew was focused elsewhere) -despite all adversity we look forward to our next Aggressor Liveaboard (dates to be determined)

Recommended for
People we met, food prepared by Kingsley, enjoyed the liveaboard experience
  • 10 Exceptional
  • Gary A
  • United States United States
Awesome Trip !

Great dive sights at each of the three islands and the willingness of the Crew to ensure that we all had a Great experience !

Recommended for
Great Diving. Friendly Crew. Awesome Food !
  • 7.6 Good
  • Michael M
  • United States United States
Good dive trip

Unfortunately the weather was pretty bad and were were unable to leave Grand Cayman

Recommended for
Crew, Food and other guests
  • 9.6 Exceptional
  • Kathryn D
  • Australia Australia

No particular stand out, it was all great. I really liked the little party at the end with the awards.

Recommended for
The captains humour. The knowledge from the guides. The food!
  • 9.6 Exceptional
  • Sysser D
  • Denmark Denmark
Good trip and great diving

Marlin and Hammerheads

Recommended for
Food, crew and sundeck
  • 10 Exceptional
  • Christine W
  • United Kingdom United Kingdom

Turtles, eagle rays, reef fish, wall dives, soft corals

Recommended for
expert service, diving, food
  • 8.8 Fabulous
  • Ovid M
  • Canada Canada
A decent week spent diving in the Grand Cayman Islands

The boat overall was in very good shape due to its most recent overhaul. The furniture and linens were almost brand new and that was nice since the majority of Aggressors I have been on have been well used and had weathered linens and towels. Little tweaks need to be made to get boat ship shape. The furniture was spartan and basic with many rough edges, but very adequate for Liveaboard use. The only serious flaw was that the beds in the standard cabins were about 1/4” too long and if the bed shifted at all the bed near the cabin door would obstruct the door from opening. If there was a emergency to reach occupants, this many be a serious problem. The crew worked well together and were quite cheerful and helpful at all times. In regards to the diving, although the Aggressor literature and information about this trip advised over 36 dive sites, we dove approximately 10 different sites, many we dove multiple times. The dive sites we dove and Grand Cayman in general had marvelous topography and decent coral growth, however large Pelagics were mostly absent. In 22 completed dives I saw only 1 medium sized Eagle Ray, 3 medium/large (8 foot) reef sharks, a small nurse shark (5 foot), and 1 medium sized green Morrey (5 foot). I believe it was due to the choice of dive sites. It was explained to me that the ability of most of the divers onboard eliminated the better dives sites such as the East End due to weather. Also the captain advised that the weather would be too rough to safely traverse to Cayman Brac And back, thus eliminating the Russian Destroyer (weather the entire week was calm, and the ocean was flat with no real winds or rain). Having dove limited sites, not sailing to Cayman Brac, and being moored 80% of the time I was surprised that the management still charged the fuel surcharge of USD $150.00. My review may sound rough, but all in all I had a mostly decent trip and had an enjoyable time onboard the Cayman Aggressor.

Recommended for
Newly renovated boat, warm water diving, crew
Origin: US