Oahu
Keehi Pipe Dive
Man-Made Structure Transformed into a Thriving Underwater Ecosystem
Why Keehi Pipe?
Located near Keehi Lagoon, this hidden gem combines a coral-covered pipe structure with natural reef formations, creating a dynamic marine habitat. At depths of 25-50 feet, this lesser-known site offers a peaceful alternative to busier dive spots. The pipe's transformation into an artificial reef, coupled with surrounding coral gardens, provides an intriguing environment for both macro photography and fish watching.
Diving Experience
This versatile site welcomes divers of all skill levels with its moderate depths and typically calm conditions. Most trips depart from Honolulu harbors, with morning dives offering optimal visibility. The coral-encrusted pipe creates a unique backdrop for exploration, while numerous hiding spots shelter diverse marine life. Both boat and shore access options are available, though boat diving is recommended.
Responsible Diving
Give marine life plenty of space when exploring the pipe's many crevices and hideouts. The coral growth on the structure is delicate - maintain proper distance and never use it for support. Bring a dive light to spot hidden creatures without having to get too close. Stay horizontal in the water to avoid stirring up sediment, which can affect visibility for other divers and stress marine life.
Quick Facts
Location: Near Keehi Lagoon, South Oahu, Hawaiʻi
Depth: 25-50 ft (All Skill Levels)
Visibility: 40-60+ ft
Marine Life: Turtles, Reef Fish, Eels, Macro Life
What You’ll See
Artificial Reef: Coral-covered pipe structure creating marine habitats
Reef Fish: Butterflyfish, wrasses, damselfish in schools
Hidden Creatures: Moray eels, octopuses, nudibranchs
Occasional Visitors: Eagle rays and white-tip reef sharks
Frequently Asked Questions
Can I shore dive this site?
Yes, but boat access is recommended unless you're experienced with local conditions and entry points.
Is it good for photography?
Perfect for both macro shots of small creatures and wide-angle views of the coral-covered structure.
What experience level is needed?
Suitable for all levels, with depths and conditions manageable for beginning divers.
When is the best time to dive?
Morning dives offer the calmest conditions and best visibility.
Ready to Explore?
Experience the unique blend of artificial structure and natural reef at this hidden Oahu dive site. Whether you're hunting for macro life or observing larger species, Keehi Pipe offers a peaceful alternative to busier dive locations.