Okubo Hama is a shore-entry reef site located on Hachijojima, Japan. The site reaches a maximum depth of 14 metres and offers visibility that can extend up to 30 metres. With mild currents, it is suitable for beginner divers and snorkellers. The topography consists of reef structures that require careful buoyancy control to avoid contact. Due to the presence of sharp coral and rocks, protective footwear is recommended for shore entries. Divers and snorkellers should remain mindful of their surroundings to prevent injury from the reef structure while exploring the area.

Mikurajima Island features a topography of reefs, walls, and drop-offs ranging from the surface to 7 metres in depth. This site is suitable for beginners, with boat access required for all dives. Water temperatures fluctuate between 20C and 29C, though the Kuroshio Current can cause variations between 17C and 30C. While currents are generally mild, divers should monitor for stronger flows near wall and drop-off zones. Due to surf and shore break hazards at the entry point, guided tours are recommended to ensure safe timing and navigation. Equipment rental and boat charters are available locally to support diving activities.

Aqua Mate is a shore-accessible reef dive located on the Izu Peninsula. The site features shallow, calm waters, making it a suitable environment for beginner divers to practice buoyancy and build confidence. Conditions at the site can vary, so it is recommended to check for current reports before entering the water. Water temperatures fluctuate between 19 and 29 degrees Celsius throughout the year, requiring appropriate wetsuit thickness for the season. On-site facilities include parking, showers, changing rooms, air fills, and equipment rental, allowing for a convenient experience for those travelling light.