Sanchin is a shallow reef located off Zamami Island, offering a manageable environment for beginner divers. The site features extensive hard coral formations across depths ranging from 5 to 15 metres, with an average depth of 10 metres. Visibility typically spans 10 to 30 metres, providing good views of the reef structure. Divers should maintain neutral buoyancy to avoid contact with sharp coral and rock edges. Access is exclusively by boat, and the site experiences mild currents. Water temperatures are warm, fluctuating between 22 and 29 degrees Celsius throughout the year. Divers should arrange all equipment and tank fills with their boat operator prior to departure.

Uchizan is a pinnacle and reef drift dive site located off Zamami Island. The site features a depth range of 15 to 20 metres with an average depth of 18 metres. Divers experience strong currents, making this an advanced site that requires boat access. Visibility typically ranges from 20 to 30 metres, allowing for clear views of the reef structure. Due to the significant drift conditions, divers must maintain close proximity to the boat and follow guide instructions strictly. An SMB is essential for all divers at this location. Dive times average 40 minutes, and thorough briefings regarding current direction and pick-up plans are critical before entry.

Ugan, also known as Male Rock, is a dramatic offshore pinnacle located 1000 metres from Zamami Island. This site features vertical walls and a steep drop-off, with depths ranging from 9 to 35 metres and an average depth of 25 metres. Due to the location, boat access is required. Divers and snorkellers should be prepared for strong currents, which are a notable hazard at this site. Visibility is variable, ranging from 15 to 50 metres. Given the challenging conditions, this site is suitable for advanced divers and experienced snorkellers.

Kuroshima South is a reef site located off Zamami Island, offering depths between 5 and 18 metres. This boat-entry site features variable currents and visibility ranging from 15 to 30 metres. Divers and snorkellers should exercise caution regarding sharp coral, stonefish, and lionfish present on the reef structure. Due to the potential for currents to strengthen unexpectedly, it is recommended to remain close to your guide and avoid contact with the reef. The site is suitable for beginners, though constant monitoring of depth and air supply is necessary given the changing water conditions.

Kuroshima Twin Rocks, located off Zamami Island, is a complex site defined by two sea-exposed rocks and a dramatic wall that drops to 50 metres. The topography includes reef and pinnacle formations, requiring boat access due to its location 2000 metres from shore. Divers should be prepared for moderate currents and depths reaching 50 metres, with an average depth of 25 metres. Visibility is generally high, ranging between 20 and 40 metres. Given the depth and potential for strong currents, this site is suited for advanced divers. Water temperatures fluctuate between 22C and 28C throughout the year.

Sand Triangle is a reef site located off Zamami Island, Japan, offering depths between 5 and 20 metres. Accessible only by boat, the site features mild currents and visibility reaching up to 40 metres. The topography consists of reef-building corals, which require careful navigation to avoid contact with sharp edges. The water temperature fluctuates between 22 and 29 degrees Celsius throughout the year. Due to the presence of sharp coral and rock, maintaining neutral buoyancy is essential for all divers and snorkellers. This site is suitable for beginners, though visitors should confirm facility availability with their boat operator prior to departure.

Jitsuru is a reef and wall site off Zamami Island, Japan, defined by its strong drift conditions. The wall drops to a depth of 20 metres, where sea fans provide structure. Divers should remain alert for strong currents and rip currents, as well as variable visibility. Hazards include jellyfish, sharks, stonefish, and sharp coral. Due to the drift nature of the site, divers spend more time hovering than kicking. Species recorded around this area include green sea turtles, clown triggerfish, and various wrasses. This site is suitable for intermediate divers, and boat access is required.

Kamekichi is a reef site located off Zamami Island, Japan, offering depths between 5 and 15 metres. The site is accessible by boat only and is suitable for beginners, though divers must be prepared for moderate to strong currents that can build quickly. Visibility at the site ranges from 15 to 40 metres. Divers should remain close to the boat and monitor their depth during ascent to avoid being swept away from the reef. Water temperatures fluctuate throughout the year, ranging from 22C in February to 29C between July and September. Typical dive times at this location are approximately 50 minutes.