Katsuura & Namegawa · Japan · Reef · Muck & macro
Niihama
A one-minute boat ride to a shallow rocky site
Niihama is a shallow rocky site in the Namegawa area, reached by a small outboard boat one minute from the harbour. The maximum depth is 12 m, and trial dives and licence courses run here. Small animals hiding among the rocks are the main interest.
Also known as 新浜, Niihama.
Where it is and how deep
No published position for this site — the map shows Katsuura & Namegawa and its other sites; operators know the mooring.
The dive
The dive stays within 12 m over a rocky bottom. Gobies, scorpionfish and nudibranchs shelter among the rocks, and most of what divers find is small. Lumpfish are also seen here.
Marine life and season
- Nudibranchs
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Prime | Prime | Prime | Good | Good | Good | Good | Good | Good | Good | Good | Prime |
Season follows Katsuura & Namegawa: Diving runs all year; winter opens Umanose and brings lumpfish onto the sand, in the coldest water of the year.
Sources
- 勝浦blueの海でダイビング — Katsuura City Tourism Association
More dive sites in Katsuura & Namegawa
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Wall
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Amberjack schools over a winter-only fishing ground
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