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.
Haleiwa Trench
Historic WWII trench now a thriving deep wall dive.
Shore Access
20m Avg Depth
35m Max Depth
About this dive site
DivingFreedivingSnorkeling
Site Ratings
Big Marine Life Good
Macro Marine Life Very Good
Landscape Quality Excellent
Water Visibility Very Good Viz
Brought to you by Aaron's Dive Shop
Plan Your Visit
wall diveshore divedeep diveadvanced onlyturtlesharkhistoricalwide angle
Marine Life
Reef Shark
Galápagos Shark
Southern Eagle Ray
Butterflyfish
Blue-Barred Parrotfish
Snowflake Moray
Turtle
Octopus
Triggerfish
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
Nearby Dive Sites
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