Miyagi Channel offers a diverse underwater landscape featuring reefs, pinnacles, walls, and caverns. Located off Tokashiki Island, the site ranges from 8 to 30 metres in depth with visibility typically between 20 and 30 metres. This site is strictly for advanced divers due to variable and potentially strong currents that require careful planning around slack water. Divers should maintain buoyancy control to avoid sharp coral and rocks. Hazards include jellyfish, stonefish, lionfish, and sea urchins on the seafloor. Boat access is required for all dives, and operators should be consulted regarding current conditions before entry.

Sand Way is a reef site located off Tokashiki Island, Japan, offering a dive experience suitable for beginners. The site features a sandy substrate and reef topography at depths ranging from 4 to 20 metres, with an average depth of 10 metres. Access is strictly by boat, as the site is situated 1000 metres from the shore. Divers should be prepared for moderate currents that can strengthen with little warning, requiring careful buoyancy management and close attention to local conditions. Visibility at the site typically ranges between 10 and 20 metres, with water temperatures fluctuating between 22C and 29C throughout the year.

Yokohishi is a shallow reef site located off Tokashiki Island, Japan, featuring depths ranging from the surface to 15 metres. The topography consists of reef structures including isobana, blue corals, and shikoro coral. Divers should be prepared for moderate currents, which are a consistent factor at this location. Due to the presence of sharp coral and rock formations, careful buoyancy control is required to avoid contact with the reef. This site is accessible only by boat and is suited for intermediate divers. The habitat supports a variety of reef fish and invertebrates typical of the Kerama Islands region.

Ukibaru North is a gentle reef dive located 300 metres off Tokashiki Island. The site features a reef structure dominated by fan corals, with depths ranging from 10 to 16 metres and an average of 13 metres. It is suitable for beginner divers, offering mild currents and visibility between 10 and 30 metres. Access is by boat only, and there are no fixed services at the location. Divers should arrange transport and facility requirements in advance. Water temperatures remain comfortable throughout the year, ranging from 22 to 29 degrees Celsius, making it a reliable destination for those seeking a relaxed reef experience.

Aosango is a shallow reef site located off Tokashiki Island, primarily known for its blue coral formations. The reef structure ranges from 5 to 14 metres in depth, with snorkellers typically observing the upper sections. Visibility is variable, ranging from 10 to 30 metres, and the site is characterised by mild currents. Access is generally by boat, though local conditions regarding entry logistics should be confirmed prior to arrival. Water temperatures remain comfortable throughout the year, between 22 and 29 degrees Celsius, making it a suitable location for beginners.

Coral 1 is a reef and wall site located off Tokashiki Island, Japan. Suitable for beginners, the site reaches a maximum depth of 18 metres. Divers and snorkellers can explore hard coral formations that provide habitat for a variety of reef fish and invertebrates. Access is by boat only, and visitors should be prepared for moderate currents that occur throughout the area. It is recommended to remain close to the boat entry point and monitor current strength during the dive. Water temperatures range from 22 to 29 degrees Celsius, and visibility can vary significantly depending on local conditions.

Hamahiga Beach on Tokashiki Island is a shallow shore entry site featuring a combination of natural reef and artificial reef structures. With depths ranging from 1 to 4 metres and mild currents, it is well-suited for beginners and snorkellers. Visibility typically spans 5 to 15 metres, allowing for observation of the local reef habitat. Water temperatures remain comfortable throughout the year, fluctuating between 22 and 29 degrees Celsius. On-site facilities include parking, toilets, and showers, providing convenience for visitors. The site is best accessed in the morning when direct light enhances visibility across the shallows.

South to South is a boat-access reef site located 1000 metres off Tokashiki Island. The site features a reef structure at depths ranging from 10 to 16 metres, with an average depth of 12 metres. Visibility typically spans 15 to 30 metres. Divers and snorkellers should be aware that currents are generally moderate but can strengthen, requiring careful monitoring of local conditions. Due to the open-water environment and potential for strong currents, coordination with the boat operator is essential. A surface marker buoy is recommended for all ascents. Water temperatures fluctuate between 22 and 29 degrees Celsius throughout the year.