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Haleiwa Trench

Oahu, Hawaii, United States
★ 4.0 (1 review)
•

Advanced

Historic WWII trench now a thriving deep wall dive.

Shore Access
20m Avg Depth
35m Max Depth

About this dive site

This dive site, Haleiwa Trench, presents a unique underwater experience. Constructed during World War II as a man-made trench on Oahu's North Shore, it now boasts a remarkable wall of marine life. The trench offers significant depth and an expansive environment for exploration. It’s a compelling location for divers interested in exploring a submerged historical feature interwoven with a thriving ecosystem.

Diving Freediving Snorkeling

Site Ratings

Big Marine Life Good
Macro Marine Life Very Good
Landscape Quality Excellent
Water Visibility Very Good Viz
Famousness Well Known

Plan Your Visit

wall diveshore divedeep diveadvanced onlyturtlesharkhistoricalwide angle

Marine Life

green sea turtlewhitetip reef sharkeagle rayoctopus (tako)butterflyfishparrotfishmoray eeltriggerfish

Things to Note

Difficulty:

Advanced

Significant depth, potential for strong surge, and a long surface swim from shore make it challenging.

Hazards:
depthcurrentwavesboat traffic
Current Strength:

Variable

Diving Conditions

Water Temperature Now: 27.9°C

Wind

Tide

Swell

Swell Height (m)
Swell Period (s)

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