Yoron Island is a reef site located off Okinawa Main Island, Japan, offering boat-accessible diving suitable for beginners. The topography features a reef system with depths extending to 21 metres, though shallower sections provide accessible areas for less experienced divers. Conditions are variable, with visibility fluctuating between dives; it is recommended to consult with your local dive operator regarding current conditions before heading out. Water temperatures range from 22C in the winter to 29C in the late summer months. Divers should exercise caution regarding hand and knee placement on the reef, as certain bottom-dwelling fish species are well-camouflaged against the substrate.

The USS Emmons is a memorial wreck site located off Tokashiki Island. Resting at depths between 36 and 45 metres, with an average depth of 43 metres, this site is strictly for advanced divers. The vessel is showing signs of structural collapse, and penetration or the removal of any articles is prohibited. Access is by boat only, situated approximately 1852 metres from shore. Divers should be prepared for strong currents and deep conditions, with typical dive times around 25 minutes. Visibility generally ranges from 20 to 30 metres. Facilities at the site include toilets.

Tokei Beach on Kouri Island is a natural reef site defined by its distinctive pothole rock formations. The area features shallow waters starting from 1 metre deep, making it accessible for beginners and suitable for snorkelling. Divers and snorkellers should be aware of moderate currents and potential hazards including jellyfish, sharp coral, and surf. Facilities available at the site include parking, toilets, showers, changing rooms, and equipment rental. The water temperature ranges from 22C to 29C throughout the year, providing a variable environment for coastal exploration.

Turtle Mansion is a beginner-friendly reef site located 1000 metres off the coast of Tokashiki Island. Divers typically explore the reef at depths between 8 and 19 metres, with an average depth of 12 metres. Conditions are generally manageable, featuring mild currents and visibility ranging from 10 to 25 metres. Access is exclusively by boat. Species recorded around this area include wrasses, elongate clams, yellow boxfish, bluestreak cleaner wrasse, hermit crabs, snails, and sea cucumbers. Divers should be aware of dangerous marine life, including banded sea kraits, and maintain a safe distance from all creatures. Guided tours, equipment rental, and air fills are available through the local dive shop.

Bise-zaki on Tokashiki Island is a shallow reef and seagrass site suitable for beginners. The area features a lagoon with depths ranging from the surface to 4 metres, averaging 2 metres. Access is via a shore entry, and the site experiences mild currents. Divers and snorkellers should be aware of potential hazards including sharp coral and surf. The site is best explored at mid-to-low tide when conditions are calm. Facilities available at the location include parking, showers, toilets, and equipment rental. A typical dive duration is approximately 45 minutes.

Ohoba No.1 Crevasse on Tokashiki Island offers a technical dive experience combining wall, reef, and cave topography. The site is defined by a crevasse that cuts through the structure, creating an overhead environment between 12 and 28 metres. Divers must maintain awareness of their positioning and air supply while navigating these enclosed sections. Access is by boat only, and the site is suited for intermediate divers due to the overhead hazards and variable visibility. Mild currents generally keep navigation manageable, though conditions can shift. Ensure you have the appropriate training for enclosed spaces before entering the cave sections and confirm local conditions with your operator prior to departure.

Ishikiri is a shore-entry muck and reef site located on Tokashiki Island. Suitable for intermediate divers, the site reaches depths of 15 metres and features mild currents. The topography consists of a mix of reef and muck environments, which can result in variable visibility depending on conditions. Divers should exercise caution during entry and exit due to sharp rocks along the shoreline and potential wave activity at the surface. Water temperatures fluctuate between 22 and 29 degrees Celsius throughout the year. Given the variable visibility, it is recommended to check local conditions before planning a dive.

Gorilla Chop, located at Sakimoto Beach on Tokashiki Island, is named for a distinctive rock formation resembling a gorilla performing a karate chop. This site features a combination of natural reef and artificial reef structures, accessible via an easy shore entry. Divers and snorkellers navigate a sandy bottom leading to soft coral gardens located a short swim from the beach. Depths range from 2 to 15 metres, with an average of 9 metres. Conditions are generally mild, though divers should remain aware of boat traffic and variable visibility between 10 and 20 metres. The site is well-suited for beginners and offers on-site parking, changing rooms, toilets, and showers.