

Best for intermediate divers, Up to 22m, boat entry, moderate current.
Tobishima is a reef site located off the Izu Peninsula, accessible only by boat. The topography drops from the shallows to a maximum depth of 22 metres. Divers and snorkellers should be prepared for moderate currents, which can occasionally become strong. Visibility at the site is variable, changing significantly based on conditions and the time of year. Due to the presence of boat traffic, sharks, and currents, this site is best suited for intermediate divers. Water temperatures fluctuate between 10 and 26 degrees Celsius, requiring appropriate thermal protection depending on the season. Guided tours are available to assist with navigating the reef layout.
39.19470, 139.56010
Guided tours are available at the site, and given the variable visibility and moderate current, diving with a guide who knows the reef layout is a practical advantage here. Water temperature drops sharply in winter, so a drysuit or thick wetsuit is worth the effort outside the March to October season.
The island is located 40km off the coast of Yamagata prefecture and is accessible by a 1 hour and 30 minute liner service from Sakata port.
Expected in this region. No sightings logged here yet.
Depth
Up to 22m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
10-26°C
Current
Moderate
Best Time
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
No nearby dive sites found within 50km.
No, this site is rated for intermediate divers due to the moderate to strong currents and the presence of sharks.
The reef topography extends from the shallows down to a maximum depth of 22 metres.
Tobishima is located 40 kilometres from the shore and requires a boat for access.
The recommended months for diving and snorkelling at this site are March through October.
Divers must watch for boat traffic during ascent and descent, navigate moderate to strong currents, and remain aware of sharks in the area.
Diving at Tobishima in Sakata requires the following certifications: Open Water. Always dive within your training limits.
A 7mm wetsuit or semi-dry is recommended for diving at Tobishima in Sakata. Water temperatures range from 10°C to 26°C.
Expect moderate currents at Tobishima in Sakata. Good buoyancy control and some drift diving experience is helpful.