Reefwander
A blue five-armed sea star with rust-orange blotches lying on fine green-grey sand underwater — Shakotan Peninsula

Shakotan Peninsula · Japan · Reef

Canyon

Columnar rock rising from a sand floor, best in the shallows

Area photo: snotch from Sapporo, Hokkaido, Japan · CC BY 2.0

Canyon is a 17-minute boat ride from Horomui harbour. Columnar jointing rises straight out of a sand floor here, probably the finest of its kind on the peninsula. The current is weak, and the shallows are the best part of the dive, with the bottom at 22 m.

Also known as キャニオン.

Where it is and how deep

Depth profile of Canyon: typical dive to 22 m (to 72 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit22 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

No published position for this site — the map shows Shakotan Peninsula and its other sites; operators know the mooring.

The dive

Pillars of columnar jointing stand up from a sandy bottom, probably the best examples on the peninsula. The current is weak. The shallower parts of the rock are the most rewarding, ahead of the 22 m bottom.

Marine life and season

The sources we used don't single out particular species here.

Month-by-month season rating for Canyon
JanFebMarAprMayJunJulAugSepOctNovDec
GoodGoodGoodGoodGoodGoodPrimePrimePrimeGoodGoodGood

Season follows Shakotan Peninsula: Diving runs all year; July to September is the best season for fish and visibility, while the colder months bring the sea lions.

Sources

  1. Aqua Cat Horomui point map — Aqua Cat Horomui Diving Camp

More dive sites in Shakotan Peninsula

Fast, clear water and oversized fish off the peninsula's headland

to 32 madvanced

A tangle of interlocking rocks with entry from boat or shelf

to 23 mintermediate

A shallow, weak-current dive 4 minutes from the harbour

to 13 mbeginner

A loop around columnar-jointed rock, exiting through a channel

to 8 m · max 23 mbeginner

A sheltered inlet, a drop to 20 m, hidden reefs and a cave

to 20 m · max 24 madvanced

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