Reefwander
A dive boat loaded with scuba gear heads toward rocky islets in bright turquoise water off Tokashiki — Kerama Islands.

Kerama Islands · Japan · Pinnacle · Reef

Tokashiki Three Rocks

Three rock heads with table coral, 5 m down to 30 m

Area photo: DavideGorla · CC BY 2.0

Sanbon Nene — Three Rocks — lies in Tokashiki Village waters and is built around three underwater rock heads standing off the bottom. Published depth spans 5 m to 30 m, currents are described as gentle, and the coral on the shallower rock is table and branching growth. Green turtles are a frequent sighting.

Also known as Sanbon Nene.

Where it is and how deep

Depth profile of Tokashiki Three Rocks: typical dive 5–30 m (15–100 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit5 m30 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

26.1952° N, 127.3430° EPublished position for this site.

The dive

Three rock heads give the site its name and its shape. They stand clear of the bottom in Tokashiki Village waters, and the published depth range across the site runs from 5 m at the top of the structure to 30 m at its base, so how deep the dive goes is a choice rather than a fixed profile. The current across it is described as gentle.

Table and branching corals cover the shallower rock, and green turtles are listed as a high-probability sighting, with gobies among the reef fish holding on the structure. Nothing is published about moorings, the entry point or the order the three rocks are dived, so the depth plan and the route are the shop's call on the day.

Marine life and season

  • Sea turtles
  • Pristine corals
Month-by-month season rating for Tokashiki Three Rocks
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairGoodPrimePrimePrimePrimePrimeGoodGoodGoodFair

Season follows Kerama Islands: Calmest seas and best clarity run April-September; winter brings choppier northeast winds and cooler water.

Questions divers ask

How deep is Sanbon Nene?+

Depths on the site run from 5 m to 30 m. The tops of the three rocks are shallow enough for any certification level, while the 30 m bottom puts the full profile into advanced or deep-trained territory.

Sources

  1. Tokashiki Three Rocks (Sanbon Nene) dive site — Scubago / SSI MyDiveGuide

More dive sites in Kerama Islands

Coral garden

Coral shelves to 18 m with green turtles as the constant

to 18 mbeginner

Coral garden

Coral colonies on white sand, boat access, down to 25 m

to 25 mintermediate

Coral garden

Pastel coral garden at 11 m with a high turtle hit rate

to 11 mbeginner

Sunlit crevasses and caves in a rock wall from 3 to 22 m

3–22 mbeginner

Similar dives elsewhere

Pinnacle

Isomura

Katsuura & Namegawa · Japan

Houndsharks resting in a cave at the tip of the south reef

to 30 m · max 35 mintermediate

Pinnacle

Ootaka-ne

Miura Peninsula · Japan

Soft corals blanketing the walls of the northern drop-off

to 30 mintermediate

Pinnacle

Batu Bolong

Komodo · Indonesia

A holed rock at the surface, a coral-covered pinnacle below

10–25 m · max 70 madvanced

Pinnacle

Dharavandhoo Thila

Baa Atoll & Hanifaru Bay · Maldives

Turtles and whitetips resting under a quiet 10 m pinnacle

10–30 mintermediate