Potato Rock is a shallow reef site in the Kabira Area of Ishigaki Island, Japan. The reef structure sits between 5 and 15 metres, with an average depth of 10 metres, making it suitable for beginner divers. Visibility ranges from 10 to 30 metres. Access is by boat, and while currents are generally mild, they can be unpredictable. Divers should exercise caution near sharp coral and rocks. Species recorded around this area include coral grouper, orangestripe triggerfish, blackback anemonefish, and various snails. Protective clothing is recommended to mitigate the risk of jellyfish stings, and divers should remain close to their guide due to potential surges.

Three Rocks is a reef and pinnacle site located 150 metres offshore in the Kabira Area of Ishigaki Island. Suitable for beginners, the site features depths ranging from 3 to 17 metres with an average of 8 metres. Divers and snorkellers encounter mild currents and visibility between 5 and 15 metres. The topography includes overhead swim-throughs and sharp coral structures. Species recorded around this area include ribbon eels, coral groupers, anemonefish, and various wrasses. Boat access is required, and night diving is available. Divers should exercise caution regarding boat traffic, rip currents, and sharp coral edges while maintaining awareness of their surroundings.

Middle Book is a shallow reef located 2000 metres offshore in the Kabira Area of Ishigaki Island. The site features a consistent depth profile between 10 and 13 metres, making it well-suited for beginner divers and those seeking a relaxed profile. Visibility typically ranges from 10 to 30 metres, allowing for clear views of the reef structure. Divers encounter mild currents, which facilitate easy navigation across the site. Access is strictly by boat, requiring coordination with local operators based on Ishigaki island. Water temperatures remain temperate throughout the year, ranging from 23 to 30 degrees Celsius, with a typical dive duration of 45 minutes.

Sakuraguchi is a reef site located 2300 metres offshore in the Kabira Area of Ishigaki Island. Suitable for beginners, the site features a reef structure at depths between 5 and 15 metres, with an average depth of 10 metres. Visibility ranges from 10 to 30 metres. Access is by boat only. While currents are generally mild, they can strengthen without warning, requiring divers to remain alert. Species recorded around this area include coral grouper, wrasses, bird wrasse, orangestripe triggerfish, blackback anemonefish, ocellaris anemonefish, rock cod, lined bristletooth, rabbitfish, and snails. Divers should exercise caution regarding jellyfish and consider wearing a full wetsuit or dive skin for protection.

Osaki Batfish Reef in the Kabira Area is a reef site ranging from 5 to 35 metres in depth, with an average depth of 15 metres. Accessible only by boat, the site is located 300 metres from shore. Divers encounter moderate currents that can shift and intensify, requiring careful planning with boat crews. Visibility typically ranges between 20 and 30 metres. The topography features reef structures that demand caution regarding sharp coral, sea urchins, and stonefish. Due to the potential for strong currents, particularly at the surface, this site is best suited for those comfortable with variable conditions. Typical dive times are approximately 50 minutes.

Osaki Beach in the Kabira Area is a sheltered reef site located on the west coast of Ishigaki Island. The reef edge sits approximately 200 metres from the shore, featuring coral gardens and drop-offs that reach depths of up to 30 metres, with an average depth of 5 metres. The site is accessible via a shore entry and is suitable for beginners due to the mild currents and calm conditions, even during periods of strong northern winds. Visibility typically ranges between 10 and 30 metres. Parking facilities are available for visitors. Divers and snorkellers can expect a typical session duration of 60 minutes.

Osaki is a shallow reef site located in the Kabira Area of Ishigaki Island. Divers can explore depths ranging from 5 to 17 metres, with visibility typically spanning 20 to 40 metres. The site features a mild current, making it suitable for beginner divers. The topography consists of reef structures and sandy patches. When navigating the area, maintain distance from the seabed and exercise caution near the reef to avoid contact with lionfish and stonefish. Access to this site is by boat only. Natural light is generally good throughout the day, though early boat trips often provide the calmest surface conditions.

Ukon Danchi is a calm, shallow reef site located in the Kabira Area of Ishigaki Island. Suitable for beginners and snorkellers, the site features depths ranging from 8 to 14 metres with no current. Visibility typically spans 10 to 30 metres, allowing for clear observation of the reef structure. Access is exclusively by boat, and local facilities provide equipment rental and air fills. Divers should exercise caution regarding buoyancy to avoid contact with the substrate, as sharp coral and well-camouflaged stonefish are present. Jellyfish may also be encountered in the water column, so maintaining awareness of surroundings is essential throughout the dive.