Izu Oceanic Park is a shore entry site on the Izu Peninsula, characterised by dramatic underwater topography formed by ancient lava flows from Mt. Omuro. The site features a concrete ramp and handrails to assist with entry into the water. Conditions vary, with water temperatures ranging from 17C in the winter months to 28C in August. Due to the nature of the entry and the site environment, it is suited for advanced snorkelers. The site provides a distinct look at the volcanic geology of the region.

Izu Oceanic Park offers a diverse underwater landscape featuring natural reefs, kelp forests, and artificial reef structures. Located on the Izu Peninsula, this site is suited for intermediate divers, with depths ranging from 10 to 30 metres and an average depth of 15 metres. Shore entry requires caution due to potential surge and swell conditions, as well as sharp rocks on the seabed. Visibility typically spans 10 to 25 metres, supported by mild currents. The site is well-equipped with full facilities, including parking, showers, changing rooms, and equipment rental, allowing for a comfortable post-dive experience.

Futo Port on the Izu Peninsula offers a diverse underwater environment featuring reef, cave, and artificial reef structures. This shore-entry site is suitable for beginners, with an average depth of 10 metres and a typical dive duration of 50 minutes. Conditions are generally manageable, with mild currents and visibility ranging from 9 to 24 metres. Water temperatures fluctuate between 17C and 27C throughout the year. The site supports night diving and is well-equipped with parking, toilets, showers, and changing rooms. Divers should remain aware of boat traffic in the area.

Futo Yokobama is a shore-entry dive site on the Izu Peninsula featuring a combination of reef and cave topography. Divers can explore depths ranging from 6 to 30 metres with visibility typically between 9 and 15 metres. The site experiences mild currents, making it suitable for beginners. The underwater environment supports a variety of reef fish and invertebrates typical of the region. On-site facilities include parking, toilets, showers, changing rooms, and a rinse station. Divers must remain vigilant regarding boat traffic, as vessels frequently pass through the immediate area during shore entries and exits.

Hokkawa Kajikaki is a marine site off the Izu Peninsula featuring a combination of natural reef and artificial reef structures. The site is suitable for beginner divers, with depths ranging from 12 to 24 metres and an average depth of 15 metres. Divers encounter mild currents throughout the area. Access to this site is by boat only. The habitat supports a variety of reef fish and invertebrates typical of the region. Water temperatures fluctuate between 17 and 25 degrees Celsius, requiring divers to select appropriate thermal protection based on the time of year.

Kawana Beach on the Izu Peninsula offers a accessible shore entry featuring a gentle slope equipped with handrails. This site consists of both natural reef and artificial reef structures, making it suitable for beginners. Divers and snorkellers can expect depths ranging from 5 to 15 metres, with an average depth of 10 metres. Conditions are generally mild with visibility between 5 and 15 metres. The site supports a variety of temperate marine life, including various reef fish and invertebrates typical of the region. Facilities available at the beach include toilets, showers, changing rooms, and parking.

Inatori Port is a shallow shore entry site on the Izu Peninsula, reaching a maximum depth of 9 metres. This site is suitable for beginners and those looking to build confidence in the water. The reef environment experiences mild currents, allowing for slow, patient observation of the local habitat. Divers and snorkellers can expect to encounter a variety of reef fish and invertebrates typical of the region. Visibility at this site is variable and can be significantly reduced by recent rain or swell. As there are no confirmed facilities on site, visitors should arrive prepared with all necessary equipment, water, and supplies.

Hatsushima Island (Futatsune) is a shore-entry site located on the only inhabited island in Shizuoka, accessible via ferry from Atami. The topography features a gentle slope transitioning into a combination of natural reef and artificial reef structures. Depths range from 2 to 18 metres, with an average depth of 10 metres, making it suitable for beginners. Divers and snorkellers can expect mild currents and visibility between 12 and 15 metres. Facilities at the site include a dive shop, equipment rental, guided tours, parking, showers, toilets, and a cafe. Typical dives last approximately 45 minutes. Be aware of sea urchins and sharp coral present in the area.