Castle Reef is a finger reef formation located off the East Coast of Saint Thomas. The site is situated within a marine preserve and is surrounded by sand flats. Divers can explore depths reaching 14 metres. Access to this site is by boat only, as there are no mooring buoys. Conditions are variable, with visibility ranging from 60 to 100 metres and water temperatures between 27C and 30C throughout the year. The site is rated for intermediate divers. Caution is advised due to the presence of sharp coral throughout the reef structure.

Secret Harbor in Saint Thomas offers a sheltered, accessible environment for both divers and snorkellers. The site features a reef with depths ranging from 2 to 6 metres, averaging 5 metres. Conditions are generally mild, with visibility between 10 and 25 metres and water temperatures consistently between 27 and 30 degrees Celsius. Shore entry is straightforward, though visitors should exercise caution regarding sharp coral and sea urchins. The site is well-equipped with parking, toilets, showers, a cafe, and an on-site dive shop. Due to boat traffic in the area, the use of a surface marker buoy is recommended for safety.

Cow Rock is a rocky reef formation located 805 metres off the coast of Saint Thomas. The site features a rocky bottom topography characterised by natural swim-throughs and colourful growth. Divers typically experience depths ranging from 12 to 15 metres, with an average depth of 12 metres. Access to this site is by boat only. Conditions are generally mild, with visibility ranging from 10 to 30 metres and water temperatures between 27C and 30C. Due to the location, divers should remain aware of boat traffic in the area. A typical dive at this site lasts approximately 45 minutes.

Calf Rock is a reef site situated adjacent to Cow Rock in Saint Thomas. The topography features a lengthy ledge and a rocky bottom, providing a habitat for various marine life. Divers can explore shallow areas that host elkhorn, staghorn, and pillar corals. The site reaches depths between 6 and 14 metres, with an average depth of 10 metres. Access is by boat only. Conditions include moderate currents and visibility ranging from 5 to 14 metres. Water temperatures remain warm throughout the year, typically between 27 and 30 degrees Celsius. Divers should be aware of sharp coral present at the site.

Cabrita Pinnacle is a reef and pinnacle site located 4000 metres offshore from Saint John. The site features a shallow profile with depths ranging from 0 to 15 metres, averaging 10 metres. Divers typically experience visibility between 18 and 30 metres in water temperatures of 27 to 30 degrees Celsius. While the current is generally mild, strong surges can develop, requiring divers to remain close to the pinnacle structure for shelter. This site is accessible only by boat and is suitable for beginner divers. A typical dive lasts 50 minutes. Ensure all equipment and refreshments are secured before departure, as there are no facilities on-site.

Cabrita is a boat-access reef site located off Saint John. The reef structure extends from 9 metres to a maximum depth of 21 metres, with an average depth of 15 metres. Divers experience moderate currents, making this a drift dive that requires careful monitoring of air and depth. The site features an overhead cave environment and sharp coral formations, necessitating caution with buoyancy and fin placement. Visibility typically ranges between 18 and 30 metres. Due to the potential for currents to increase unexpectedly, beginners should remain in close proximity to their dive guide and avoid the deeper drop-off areas.

The General Rogers is a vessel deliberately sunk off Saint Thomas to serve as an artificial reef. Resting at depths between 12 and 21 metres, the wreck structure is accessible via boat. Divers encounter visibility ranging from 10 to 30 metres, allowing for clear navigation of the site. Strong currents are a consistent feature, requiring intermediate skill levels and precise buoyancy control. The site is suitable for night diving, which offers a different perspective on the structure. Due to the depth and current, divers must monitor their position carefully and coordinate ascent plans with their boat operator.

Stragglers' Reef is located on the lee side of Great St James, offering a sheltered dive site suitable for beginners. The topography features a system of canyons and a reef wall. Divers typically experience depths between 12 and 15 metres, with an average depth of 20 metres. Access is by boat only, and the site is subject to mild currents. Visibility ranges from 9 to 30 metres, with water temperatures between 27C and 30C throughout the year. Divers should be aware of boat traffic and complex navigation in the area. A typical dive lasts 50 minutes.