Amtrak is a WWII-era vehicle wreck located in Apra Harbor, Guam. The wreck rests in a sand channel at a depth of approximately 40 feet, surrounded by a reef. This site is accessible via both boat and shore entry, making it a versatile location for divers. Water temperatures at the site are warm, ranging between 28C and 30C throughout the year. Due to its depth and location, it is a popular destination for those interested in historical wrecks and reef topography.

Turtle Rock in Apra Harbor, Guam, features a distinctive rock formation shaped like a turtle. The site offers a reef and wall topography with a steep drop-off reaching depths of 26 metres. Divers can expect an average depth of 15 metres. Conditions are generally mild, though visibility fluctuates between 2 and 21 metres. Access is possible via both shore and boat, making it suitable for beginners. Due to the location, divers should remain aware of boat traffic in the area. Water temperatures remain consistent throughout the year, ranging from 28 to 30 degrees Celsius.

Tarzan Cave in Apra Harbor, Guam, offers a diverse underwater environment featuring a combination of reef, cave, and wreck topography. Divers can explore numerous underwater boulders and various artifacts dating back to World War II. The site is suitable for intermediate divers, with depths ranging from 9 to 18 metres and an average depth of 14 metres. Visibility is high, typically between 18 and 30 metres, with mild currents. Entry to the site can be made by either boat or shore. Due to the presence of boat traffic and depth, divers should maintain appropriate safety protocols throughout their dive.

Sharks Pit is a drift dive located in Apra Harbor, Guam, featuring a steep slope and a large haystack rock that rises from 27 metres to 5 metres. The site is notable for its collection of WWII artifacts scattered along the slope. Divers can expect depths ranging from 4 to 35 metres, with an average depth of 20 metres. Visibility is typically between 20 and 30 metres. Due to moderate currents and boat traffic, this site requires boat access. While suitable for beginners, divers should remain aware of the depth and current conditions.

Coral Gardens is a boat-accessible reef site located in Apra Harbor, Guam. The topography features coral formations interspersed with white, sandy crevices. With depths ranging from 2 to 14 metres and an average of 10 metres, the site is well-suited for beginners. Divers encounter mild currents and visibility between 7 and 30 metres. Water temperatures remain warm throughout the year, ranging from 28C to 30C. Species recorded around this area include wrasses, pufferfish, angelfish, and various butterflyfish. Divers should exercise caution regarding sharp coral. Typical dives last approximately 40 minutes.

Barracuda Rock in Apra Harbor, Guam, is a diverse site featuring a reef, cavern, and tunnel system. The topography includes a mini cave and a tunnel beneath a large coral head, providing swim-throughs suitable for beginners. Depths range from the surface to 32 metres, with an average depth of 14 metres. Access is by boat only. Divers and snorkellers should be aware of potential hazards, including overhead environments, sharp coral, and mild currents. Visibility varies significantly, ranging from 9 to 45 metres. Water temperatures remain warm throughout the year, typically between 28 and 30 degrees Celsius.

San Luis Beach in Apra Harbor, Guam, offers a combination of natural reef and artificial reef structures accessible via a shore entry. The site is suitable for beginners, with depths ranging from 6 to 33 metres and an average depth of 18 metres. Divers should anticipate mild currents and visibility typically between 6 and 10 metres. The location is well-equipped with facilities including parking, toilets, showers, changing rooms, and rinse stations. Air fills, dive shops, and boat charters are available nearby. Night diving is permitted at this location. Hazards to be aware of include jellyfish, rip currents, sharks, sharp coral, and stonefish.

Fuel Pier in Apra Harbor, Guam, is an artificial reef and wreck site accessible only by boat. Divers typically explore the structure at depths ranging from 14 to 27 metres, with an average depth of 25 metres. The site presents challenging conditions, including low visibility between 1 and 3 metres, potential entanglement hazards, and active boat traffic. Due to the overhead environment and limited visibility, this site is suited for intermediate divers. Night diving is permitted. Species recorded around this area include wrasses, triggerfish, angelfish, and moray eels, though these are not confirmed sightings at the pier itself.