Triangle

Artificial reef teeming with fish, colorful soft corals, suitable for all levels.

Boat Access
10m Avg Depth
21m Max Depth

About this dive site

This dive site, known as Triangle in Manazuru, Kanagawa, is a significant artificial reef created from a colossal steel frame. This structure, measuring 10m high and 50m wide, was intentionally sunk during the construction of the Iwa Ohashi Bridge. It now serves as a vibrant underwater ecosystem, offering diverse exploration opportunities around its massive framework. Divers can expect to encounter large schools of snappers and horse mackerel, along with groupers and sea bass. The reef is adorned with colorful soft corals, providing a habitat for various macro life including seasonal nudibranchs. The site is suitable for all diving levels, from beginners to experienced divers, and caters to both macro and wide-angle photography enthusiasts. While specific seasonal highlights aren't detailed, the presence of seasonal nudibranchs suggests varying macro opportunities throughout the year. Freedivers can also enjoy exploring the structure down to its average depth of 10 meters and beyond.
Diving Freediving

Site Ratings

Big Marine Life Good
Macro Marine Life Very Good
Landscape Quality Very Good
Water Visibility Very Good Viz

Plan Your Visit

artificial reefbeginner friendlywide anglemacro photographyschools of fishsoft coral

Marine Life

snappersseasonal nudibranchsgroupershorse mackerelcolorful soft coralssea bass

Things to Note

Difficulty:

All levels

Accessible max depth (21m) and average depth (10m) on a stable, fish-rich artificial reef.

Hazards:
boat traffic
Current Strength:

Variable

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