Triangle
About Triangle
Triangle is a large artificial reef in Manazuru, Kanagawa, created from a massive steel frame that was sunk during bridge construction. The structure is about 10 m tall and roughly 50 m wide, offering a big, man-made habitat to explore. It’s known for dense fish life and varied photo opportunities, with both macro subjects and wide-angle scenes around the frame and surrounding growth.
Where Is Triangle?
Triangle Planning Details
Depth range, seasonality, and planning context.
Depth Note
The artificial reef structure is described as about 10 m high and 50 m wide; no dive depth is specified.
Local Intel For Triangle
Community notes to help plan your visit.
Scuba
Described as suitable for all levels, with both macro and wide-angle subjects across the large steel frame.
Triangle Dive Conditions Planner
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Exposure Profile at Triangle
Directional shelter context for incoming swell.
Recent Logged Visits At Triangle
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Triangle
Average conditions based on logged dives & visits.
Triangle Guide - Sources and Updates
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