S-Buoy Coral Head is an exposed reef site in Kwajalein Atoll, accessible only by boat. The topography features a coral head ranging from 5 to 36 metres, allowing divers to transition from shallow reef exploration to deeper sections during a single 45-minute dive. Visibility typically spans 20 to 40 metres. Divers should expect moderate currents that may strengthen unexpectedly, necessitating careful planning and the use of a surface marker buoy. Hazards include sharks and potential entanglement risks within the reef structure. Water temperatures remain stable between 28 and 30 degrees Celsius. Always confirm local base access and facility availability before planning a trip to this site.

North Loi Coral Head in Kwajalein Atoll is a shallow reef accessible directly from the shore. The site is suitable for beginners, though divers should remain aware of moderate currents and navigate carefully to avoid contact with sharp coral and rocks. Water temperatures remain stable between 28 and 30 degrees Celsius throughout the year. Marine life recorded at this site includes the painted frogfish, day octopus, zebra lionfish, and various nudibranch species such as Chromodoris and Tryon's Hypselodoris. Divers may also encounter wrasses, triggerfish, mantis shrimp, and pink skunk anemonefish. Always check with local staff regarding current visibility and entry conditions before planning a dive.

Twin Peaks in Kwajalein Atoll features a reef starting at 5 metres that transitions into a wall dropping to 45 metres. This site is suited for intermediate divers, offering a varied profile with visibility ranging from 15 to 40 metres. Moderate currents are common, which can accelerate along the wall face. Divers should maintain buoyancy control to avoid sharp coral and rock edges. Water temperatures remain stable between 28 and 30 degrees Celsius throughout the year. The site is accessible by both shore and boat, and night diving is permitted. Divers should be aware of the presence of sharks and the potential for changing current conditions.

R-Buoy Coral Head is a reef site located in Kwajalein Atoll, Marshall Islands. The topography features a coral head that drops from 8 metres to 25 metres, with an average depth of 14 metres. Divers can expect moderate currents and visibility ranging from 10 to 30 metres. Water temperatures remain consistent between 28 and 30 degrees Celsius throughout the year. Due to the presence of sharks, sharp coral, and moderate currents, this site is suited for intermediate divers with strong buoyancy control. Access is possible via boat or shore, though divers must remain alert for boat traffic and deploy a surface marker buoy when surfacing.

Victor Buoy Coral Head is a reef site in Kwajalein Atoll that extends from the shallows to a depth of 50 metres, with an average depth of 25 metres. The site offers consistent visibility of 30 metres, allowing for clear observation of the reef structure. Access is by boat only, as the shore features strong surf and shore breaks. Divers should be prepared for moderate and shifting currents throughout the dive profile. It is recommended to plan entries around slack water and monitor conditions closely. As there are no permanent support services at the atoll, divers must be self-sufficient and confirm all logistics locally before arrival.

Bravo Buoy in Kwajalein Atoll offers a dual-environment experience, featuring both natural reef formations and artificial reef structures. This site is suitable for intermediate divers who can manage variable currents and shifting visibility. Water temperatures remain consistent between 28 and 30 degrees Celsius throughout the year. Access is exclusively by boat, and divers should coordinate with local operators to confirm conditions before departure. When navigating the site, maintain buoyancy to avoid contact with sharp coral and the rough edges of the artificial structure. Be mindful of potential jellyfish in the water column and exercise caution near the seabed to avoid sea urchins.

Troys Coral Head is a reef pinnacle located in the Kwajalein Atoll, featuring a structure that ranges from a shallow 5-metre cap down to 50 metres. The site is accessed exclusively by boat, with divers entering the water directly from the vessel. Visibility is consistently 30 metres, while water temperatures remain between 28 and 30 degrees Celsius. Due to variable currents and depths reaching 50 metres, this site is suited for intermediate divers with strong buoyancy control. Divers should exercise caution regarding sharp coral and rocks on the reef structure and maintain a safe distance from sharks present in the area.

ER-2 Coral Head in Kwajalein Atoll features a combination of natural reef and artificial structures at depths between 7 and 15 metres. This site is suitable for beginner divers, offering visibility ranging from 24 to 50 metres and mild currents. Shore entry requires caution due to potential shore break and surf. Divers should maintain neutral buoyancy to avoid contact with sharp coral and rock edges, which pose risks to both equipment and skin. Water temperatures remain warm throughout the year, typically between 28 and 30 degrees Celsius. Species recorded around this area include wrasses, anemonefish, butterflyfish, nudibranchs, and various crustaceans.