Twin Sisters is a combined reef and wreck dive site located at The Humps in the Northern Marine Reserve of Sint Eustatius. The site features depths ranging from 8 to 22 metres, making it suitable for intermediate divers. Access to the site is by boat only. Divers can expect visibility between 10 and 30 metres, with water temperatures remaining warm throughout the year, fluctuating between 27C and 30C. As a multi-faceted site, it offers a varied topography for those exploring the marine environment of the Northern Marine Reserve.

Inner Jenkins Bay at The Humps is a reef site located within the Northern Marine Reserve of Sint Eustatius. This site is suitable for beginners and offers depths ranging from 6 to 17 metres. Access is strictly by boat. Divers and snorkellers should be aware of mild currents and low visibility, which averages around 6 metres. The topography features sharp coral formations, requiring careful buoyancy control. While specific marine life sightings are not confirmed at this exact location, species recorded around this area include various angelfish, moray eels, wrasses, and barracuda. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C.

Aquarium is an isolated rock outcropping located at The Humps in Sint Eustatius. This site functions as a reef and artificial reef environment, suitable for intermediate divers. Access is exclusively by boat, with dives typically lasting 45 minutes. The site maintains a consistent depth of 18 metres. Conditions feature mild currents and visibility ranging from 10 to 40 metres. Water temperatures are warm year-round, ranging between 27 and 30 degrees Celsius. Divers should be aware of potential hazards including jellyfish, sea urchins, sharks, sharp coral, and stonefish. Facilities available in the area include air fills, equipment rental, and guided tours.

Blind Shoal is a reef and artificial reef site located at Twin Peaks in the Northern Marine Reserve of Sint Eustatius. The site is accessible only by boat and is suitable for beginner divers. Depths typically range from 6 to 19 metres, with an average depth of 12 metres. Divers can expect mild currents and visibility generally between 25 and 30 metres. Water temperatures fluctuate between 27C and 30C throughout the year. Divers should be aware of sharp coral present at the site.

Doobie's Crack is a reef site located within the Northern Marine Reserve of the Sint Eustatius Marine Park. Accessible only by boat, the site features a consistent depth of 19 metres and visibility typically ranging between 25 and 30 metres. The current is generally mild, making it suitable for beginners building confidence in moving water. Divers should maintain neutral buoyancy to avoid contact with the sharp coral and rock structures present throughout the reef. The site also includes overhead environments and swim-through structures, requiring careful navigation. Water temperatures remain warm, fluctuating between 27 and 30 degrees Celsius throughout the year.

STENAPA Reef is a combined natural and artificial reef site located 1000 metres offshore in the Sint Eustatius Marine Park. Divers explore a varied terrain that includes the Chien Tong Wreck. The site reaches depths of 20 to 30 metres, with an average depth of 15 metres, making it suitable for beginners who should plan their bottom time conservatively. Conditions are generally manageable with mild currents and visibility ranging from 15 to 30 metres. Water temperatures remain warm throughout the year, between 27 and 30 degrees Celsius. Access is by boat only. Divers should exercise caution regarding hand and knee placement to avoid contact with sharp coral and rocks.

The Chien Tong Wreck is a dedicated dive site located off the central coast of Sint Eustatius. This site features a shipwreck resting at a consistent depth of 16 metres. Divers can explore the structure, which hosts a variety of marine life including common Caribbean barrel sponges and soldierfish. Other species occasionally encountered around the wreck include great barracuda, Indian lionfish, whiptail stingray, Pacific trumpetfish, yellowhead jawfish, wrasses, smooth trunkfish, honeycomb cowfish, groupers, gorette, combers, and tilefish. Conditions at this site are variable, with water temperatures typically ranging between 27C and 30C throughout the year.

Double Wreck is a marine dive site located near the Chien Tong Wreck in Sint Eustatius. This site features a combination of wreck and reef topography, suitable for beginner divers. The depth ranges from 9 to 18 metres, with an average depth of 15 metres. Access is by boat only, and divers can expect mild currents and visibility between 15 and 30 metres. Water temperatures remain warm throughout the year, ranging from 27C to 30C. The site is available for night diving, with typical dives lasting 45 minutes. Divers should be aware of sharp coral present in the area.