Tunnels of Thatch is a reef and canyon site located off Saint John. The topography features distinct canyon structures that divers navigate in depths ranging from 16 to 24 metres. Conditions are generally mild with visibility between 10 and 30 metres. Access is by boat only, and divers should be prepared for potential surge and swell. While the site is suitable for beginners, divers must remain alert for boat traffic when surfacing and wear protective footwear to avoid injury from sharp coral and rocks. Species recorded around this area include green sea turtles, nurse sharks, French angelfish, and various parrotfish and wrasses.

Johnson's Reef is a shallow marine site located 805 metres offshore from Saint John. With depths ranging from 1 to 10 metres and an average of 6 metres, it is suitable for beginners. Divers and snorkellers can observe species including French Angelfish, Spotted Moray, Striped Parrotfish, Queen Parrotfish, Foureye Butterfly Fish, Whiptail Stingray, Reef Squid, French Grunt, Sea Bass, Yellowtail Snapper, Lizardfish, hard coral, and snails. Visibility typically spans 10 to 30 metres. Access is by boat only. Hazards include boat traffic, jellyfish, rip currents, sea urchins, sharp coral, surf, and surge. Always monitor local surge and swell conditions and use a surface marker buoy.

Trunk Cay in Saint John offers accessible shore entry to a combination of natural and artificial reef structures. The site features shallow water ranging from 1 to 5 metres, with an average depth of 3 metres, making it suitable for beginners. Divers and snorkellers can encounter French Angelfish, Spotted Moray, Great Barracuda, Nurse Shark, Wrasses, Stoplight Parrotfish, Striped Parrotfish, Blue Tang, Foureye Butterfly Fish, Flamingo Tongue, Rock Cod, Caribbean Ocean Surgeonfish, Christmas Tree Worm, and Reef Squid. Conditions include mild currents and visibility ranging from 5 to 100 metres. Water temperatures remain warm between 27 and 30C. Be cautious of sharp coral edges and occasional jellyfish.

Hawksnest Beach on Saint John offers a shallow reef environment suitable for beginners. The site features an average depth of 3 metres, with a range between 1 and 5 metres. Access is directly from the shore, making it convenient for both divers and snorkellers. Divers should be aware of moderate currents, surf, and potential boat traffic in the area. When navigating the reef, take care to avoid sharp coral and sea urchins. Facilities at the beach include parking, toilets, showers, and changing rooms. The site provides visibility ranging from 15 to 30 metres, with water temperatures remaining warm throughout the year.

Caneel Bay on the west coast of Saint John offers a shallow marine environment featuring a mix of coral reef and seagrass beds. Located 50 metres from the shore, the site reaches depths of 2 to 5 metres with an average of 3 metres. Conditions are generally mild with visibility ranging from 10 to 20 metres, making it suitable for beginners. Divers and snorkellers should be aware of boat traffic in the area, as well as the presence of sea urchins and sharp coral. Access is via the shore, with parking and toilet facilities available nearby. Typical dives last approximately 45 minutes.

Carval Rock is a reef and drift dive site located near Saint John. The topography features rock formations and swim-throughs, with depths ranging from 15 to 80 metres. Divers can observe a variety of marine life, including common sightings of Foureye Butterfly Fish, Purple Sea Fans, and Blue Tang. Other species recorded at the site include Spotted Moray, Arrow Crab, Stoplight Parrotfish, Wrasses, Atlantic Tarpon, Smooth Trunkfish, Flamingo Tongue, Pederson Cleaner Shrimp, Gray Angelfish, Pacific Trumpetfish, and Basket Starfish. Access to the site is by boat only. Conditions include mild currents and visibility between 33 and 100 metres. Hazards include deep water, overhead environments, strong currents, and surf.

Watermelon Cay is a reef site in Saint John, US Virgin Islands, offering depths between 2 and 15 metres with an average of 7 metres. The site features visibility ranging from 15 to 30 metres and water temperatures between 27C and 30C. Divers can access the reef via shore or boat. While currents are generally mild, they can strengthen unexpectedly, requiring careful monitoring. Sea urchins are present on the reef, so divers should exercise caution regarding hand and knee placement. The site is suited for intermediate divers who can manage variable current conditions and maintain buoyancy around the reef structure.

Lovango Cay is a shallow reef site located 1600 metres from shore in the US Virgin Islands. This site is suitable for beginners, with depths ranging from 1 to 2 metres and an average depth of 1 metre. Divers typically spend 50 minutes exploring the reef, where mild currents and visibility between 10 and 30 metres provide a comfortable environment. Access to the site is by boat only. On-site facilities include a cafe, showers, changing rooms, and a rinse station. Hazards include boat traffic and sharp coral, so maintain awareness of your surroundings while in the water.