Water type Salt
Dive site profile
Haleiwa Trench
Haleiwa, Hawaii, United States of America (USA)About this dive site
Explore the water around Hawaii
Haleiwa Trench is a man-made trench dug out for WWII. Today it is a deep expansive wall of life on Oahu's North Shore.
Site details
Dive type Reef
Dive type Wall
Plan the dive
Dive Conditions
Dive Types
- Reef
- Wall
Water Entry
- Shore
- Shore/Beach
Suggested Equipment
- Camera
- Dive computer
- Surface Marker Buoy
- Wetsuit
What you may encounter
Marine Life
Marine-life observations have not been added yet.
Dive site gallery
Photos from Haleiwa Trench
Diver feedback
0.0
1 reviews
This is not a man made feature! That's an urban legend and a fairly bizarre one. This would be considered a mega structure if it was man made.. digging 90 feet into the ocean isn't easy today and it was impossible in the 1940s. This is a submarine trench created by natural erosion over millions of years. Think of a canyon, but under water.