Hayakawa features a combination of natural reef and artificial structures, providing a shallow environment suitable for beginner divers. Depths range from 1 to 12 metres with an average of 7 metres. The site is accessed via a shore entry and experiences mild currents, with visibility typically between 3 and 10 metres. Facilities including a dive shop and cafe are located on site, allowing for convenient gear preparation. The area is open for night diving, which is particularly popular for macro photography. Water temperatures fluctuate throughout the year, ranging from 17C in winter to 26C during the summer months.

Nebukawa is a shore-accessible dive site on the Izu Peninsula featuring a wreck and artificial reef structure. The site ranges from 2 to 12 metres in depth, with an average of 10 metres, making it suitable for beginner divers. Visibility typically spans 5 to 10 metres. Divers should be prepared for moderate to strong currents and exercise caution during shore entry due to potential surf and shore break conditions. The habitat supports a variety of temperate marine life, including reef fish and invertebrates common to the region. Facilities available on-site include air fills, equipment rental, showers, and changing rooms.

Enoura is a shore-entry dive site on the Izu Peninsula featuring a diverse layout of natural reef, cave sections, and artificial reef structures. Suitable for beginners, the site offers a relaxed experience with depths ranging from the shallows down to 16 metres. Currents are generally mild, though visibility can vary. Divers should exercise caution during shore entry and exit to avoid contact with sharp coral and rocks on the seabed. Carrying a torch is recommended to explore the cave sections effectively. As facilities are not confirmed, divers should arrive self-sufficient with all necessary equipment.

Triangle is a pinnacle and reef system located 500 metres offshore from the Izu Peninsula. The site ranges from 10 to 21 metres in depth, with an average depth of 12 metres. Divers access the site by boat, where moderate to strong currents are common. The topography features a reef structure covered in soft corals. Visibility varies between 5 and 20 metres. Due to the potential for strong currents and depths reaching 21 metres, divers should monitor their gauges and maintain close contact with their guide. Facilities including changing rooms, showers, and a rinse station are available at the operator base.

Fukuura features a combination of natural and artificial reef structures located off the Izu Peninsula. Suitable for beginners, the site offers depths ranging from 1 to 18 metres with an average of 8 metres. Divers can access the water from either the shore or by boat. Conditions are generally mild, though visibility can vary. The site supports night diving and guided tours are available through local dive shops. The habitat provides a range of environments for various reef fish and invertebrates typical of the region. Water temperatures fluctuate between 17 and 26 degrees Celsius throughout the year.

Izusan is a reef site located off the Izu Peninsula, reaching depths of up to 17 metres. The topography consists of a reef structure that supports a variety of marine life, including frogfish, cocklefish, longnose hawkfish, and nudibranchs. Divers may also encounter bullhead wrasse, snapper, and seasonal migratory fish such as yellowtail. Access to this site is by boat only. Conditions are variable, with currents that can change without warning, and boat traffic is a constant hazard. Due to these factors, it is recommended that beginners dive with a local guide to navigate the site safely and maintain proper buoyancy during ascents.

Chinese Wreck is a boat-accessed dive site located off the Izu Peninsula. The wreck lies at depths between 25 and 35 metres, with an average depth of 30 metres. Due to the depth and the nature of the wreck, this site is suitable for advanced divers only. Divers should be prepared for moderate currents and surge, with visibility typically ranging from 5 to 10 metres. Hazards at this site include the deep profile, potential for entanglement, nitrogen narcosis, and the risks associated with an overhead environment. Guided tours and boat charters are available to facilitate access to this site.

The Atami Wreck is an artificial reef located 400 metres offshore on the Izu Peninsula. Resting at depths between 18 and 35 metres, this site is suited for intermediate divers. Access is by boat only, and divers should be prepared for variable visibility ranging from 5 to 40 metres. Currents are typically mild, though stronger surges can occur. The wreck structure presents an overhead environment, requiring caution to avoid entanglement. Water temperatures fluctuate between 17C and 25C, with a summer thermocline and potential winter lows of 10C. Divers should remain vigilant for boat traffic when surfacing.