Izu Ōshima · Japan · Reef · Cave & cavern
Nodahama
A lava arch with soft corals hanging from its ceiling
Nodahama is a shallow beach dive on Izu Oshima, centred on an arch formed by lava. Soft corals hang from the ceiling, while schools of grunts fill the arch from summer into autumn. The 12 m profile is also used for trial dives.
Also known as 野田浜.
Where it is and how deep
No published position for this site — the map shows Izu Ōshima and its other sites; operators know the mooring.
The dive
The gently shelving beach leads into terrain shaped by lava, with the arch as the main feature. Across the rock tops, clownfish occupy the reef, and summer brings mass spawning by wrasses. Beneath the arch, soft corals grow down from the ceiling and grunts gather in summer and autumn.
Marine life and season
- Reef fish swarms
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Good | Good | Good | Good | Prime | Prime | Prime | Prime | Good | Good |
Season follows Izu Ōshima: Hammerhead schools run mid-June to mid-October; winter brings tropical strays and water as clear as Okinawa’s.
Dive videos
[ 4K Ultra HD ] 伊豆大島（１） 野田浜アーチ Nodahama-Beach,Izu-Oshima Island,TOKYO. (Shot on RED EPIC) · AQUA Geo Graphic on YouTube
Questions divers ask
Does Nodahama offer a shallow beach entry?+
Nodahama is reached from the beach and has a shallow profile used for trial diving, with a maximum of 12 m.
Sources
- Izu Oshima fun-diving points — Yellow Dive
- Izu Oshima diving-point guide — Sea Sound
More dive sites in Izu Ōshima
Similar dives elsewhere
A coral arch in 6 m of water, entered off the beach
A shallow cavern under West Dog, often full of glassy sweepers
Caves, overhangs and seagrass channels in 10 m of water.
A false ceiling right around a 10 m shoal off Corralejo