Keehi Pipe Reef
Nicknamed “Mario World,” this playful reef is packed with life — vertical lava towers, a coral-encrusted pipe, and marine surprises at every turn.
Intermediate dive at 40–70 ft with squirrel fish, eels, and juvenile wrasse.
Quick Facts
📍 Location: Off the coast of Oʻahu
🌊 Depth: 40–70 ft
🔦 Visibility: Up to 100 ft
🎯 Experience Level: Intermediate
🐠 Marine Life: Squirrel fish, sharks, large moray eels, schooling puffer fish, snake eels, juvenile peacock razor wrasse
Keehi Pipe, affectionately known as “Mario World,” is one of the most playful and photogenic reef dives on Oʻahu’s southern coast. It features a horizontal pipe and towering vertical outcroppings covered in coral, creating a reefscape that feels like an underwater obstacle course.
With depths from 40 to 70 feet and visibility often reaching 100 feet, this site offers great structure for exploration, plus a sandy bottom where macro marine life hides in plain sight.
Whether you’re peeking inside the pipe at schooling squirrel fish or spotting a freckled snake eel curled in the sand, Keehi Pipe is a dive full of surprises — ideal for intermediate divers looking for something a little different.
❓FAQs: Keehi Pipe Reef
How deep is the Keehi Pipe dive site?
📏 The site ranges from 40 to 70 ft, making it ideal for intermediate-level divers.
What marine life can I see at Keehi Pipe?
🐟 You might encounter:
• Schooling squirrel fish
• Large moray eels, schooling puffers, snake eels
• Juvenile peacock razor wrasse
• Occasional reef sharks tucked in or cruising around the pipe
When is the best time to dive Keehi Pipe?
🌞 The dive is accessible year-round, with water temperatures between 75–80°F.
For best visibility and up-to-date marine life reports, contact Dive Oʻahu before your dive.
Is this dive suitable for beginners?
⚠️ Due to depth and occasional current, this dive is best for certified divers with some experience.
Beginner divers may be able to join with instructor supervision, depending on conditions.
What’s the visibility like?
👀 Visibility often reaches up to 100 ft, making this a great site for both reef exploration and marine life spotting.
What’s the water temperature like?
🌡️ Expect water temps between 75°F (winter) and 80°F (summer). A 3mm wetsuit is recommended for most divers year-round.