Legare-J Underwater Studio is an artificial reef site located off Tokashiki Island in the Kerama Islands. The site offers a shallow diving experience with depths reaching up to 10 metres. Entry is via the shore, and the area typically experiences mild currents. The site is suitable for beginners and provides facilities including parking, toilets, showers, changing rooms, and air fills. Guided tours are available for those exploring the artificial structures. Divers should be aware of sharp coral in the vicinity. Water temperatures range from 22C in the winter months to 29C during the summer.

Cross Line is a reef site located off Tokashiki Island, Japan, reaching depths of 21 metres. This site is accessed exclusively by boat and features mild currents, making it suitable for beginner divers. The topography consists of reef structures interspersed with sand patches and rubble. Divers should focus on slow, patient observation to spot cryptic marine life. Species recorded around this area include various wrasses, anemonefish, and moray eels. Visibility can be variable, so it is recommended to check local conditions before departure. Divers are encouraged to consult with their boat crew to identify likely hiding spots for small, camouflaged creatures before beginning their descent.

Nakayukui is a reef site located 750 metres off Tokashiki Island in the Kerama Islands. The site features a depth range of 5 to 30 metres, with an average depth of 10 metres. Divers experience mild currents and visibility ranging from 10 to 20 metres. Access is by boat only, as there are no facilities at the site. The environment is suitable for beginners, with typical dives lasting 50 minutes. Water temperatures fluctuate between 22 and 29 degrees Celsius throughout the year. The reef structure allows for slow, methodical exploration of the area.

Diamond Beach, also known as Nakayukui, is a reef site located on Tokashiki Island in the Kerama Islands. Accessible directly from the shore, the site features a mix of sandy patches and dense coral heads. It is well-suited for beginners, with mild currents and calm conditions generally prevailing. Snorkellers can explore the reef area up to 200 metres from the beach. Facilities at the site include a cafe and equipment rental services. While the water is generally calm, visitors should remain aware of potential rip currents. Water temperatures range from 22C in the winter months to 29C during the peak summer season.

Serakaki Beach on Tokashiki Island offers shore access to a limestone reef structure that develops significantly as you swim further from the coast. The site features a mix of reef and drop-off topography, characterised by ledges and cracks within the limestone. Depths range from 5 to 30 metres, with an average depth of 10 metres. Conditions vary, with visibility typically between 5 and 20 metres and moderate currents. The site is suitable for beginners and provides facilities including parking and showers. Divers should be aware of sharp coral present in the area. Typical dives last approximately 60 minutes, and the site is also suitable for snorkelling.

Manza Chapel is a diverse marine site featuring a combination of reef, wall, and cave topography. Divers can explore dramatic drop-offs and underwater caves that reach depths of up to 40 metres, with an average depth of 25 metres. Entry is possible from both the shore and by boat, with a collapsed staircase leading to a pier for quick access to deeper water. Conditions vary, with moderate currents and visibility typically ranging between 15 and 30 metres. The site is suited for intermediate divers due to the deep water and overhead environments. Facilities at the location include parking, toilets, showers, equipment rental, and air fills.

Mermaid's Grotto, also known as Apogama, is a marine site on Tokashiki Island featuring a natural cave and a distinct heart-shaped rock formation. The underwater topography consists of deep channels and arches. Access is via a shore entry through a narrow rocky channel, which can be challenging to navigate. Due to the nature of the entry and the site's topography, this location is suited for advanced snorkellers. Water temperatures at the site range from 22C in the winter months to 29C during the summer. Snorkellers should exercise caution when entering and exiting the water through the rocky passage.

Manza Dreamhole is a complex marine site off Tokashiki Island featuring a combination of reef, cave, wall, and drop-off topography. Divers typically explore depths ranging from 5 to 40 metres, with an average depth of 25 metres. Access is by boat only, and the site is suited for advanced divers due to potential strong currents and surf conditions. Visibility is generally high, ranging between 25 and 40 metres. Marine life observed at the site includes whitetip reef sharks, Indian lionfish, Clark's anemonefish, and various nudibranchs such as the Chromodoris, Varicose wart slug, and Heavenly wart slug. Other residents include wrasses, soldierfish, sea stars, crabs, and elongate clams.