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Nanki-Shirahama & Tanabe · Japan · Reef · Muck & macro

Sandan

Harlequin shrimp and boxer crabs on the bottom near 30 m

Sandan is an intermediate Shirahama boat point for divers who come for rarities. Its bottom near 30 m holds uncommon nudibranchs and crustaceans, which makes it a dive for macro hunters with the experience to work at depth.

Where it is and how deep

Depth profile of Sandan: typical dive 17–30 m (56–100 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit17 m30 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 Nanki-Shirahama & Tanabe and its other sites; operators know the mooring.

The dive

The dive runs between 17 and 30 m, and the search happens near the bottom at 30 m. Rare nudibranchs live there, Pikachu nudibranchs among them, alongside crustaceans such as harlequin shrimp and boxer crabs.

Marine life and season

  • Nudibranchs
  • Macro critters
Month-by-month season rating for Sandan
JanFebMarAprMayJunJulAugSepOctNovDec
GoodGoodGoodGoodGoodGoodPrimePrimeGoodGoodGoodGood

Season follows Nanki-Shirahama & Tanabe: Diving runs all year; summer is the high season, with the warmest water and bays that face away from the south wind.

Sources

  1. ダイビングポイント紹介 — Miss Ocean Diving Service

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