Fantasy Reef
Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Fantasy Reef is a series of reefs in 40 to 50 ft (12 to 15 m) of water off Oahu, Hawaii, reached by a boat ride of about 25 minutes. It is regarded as one of the better reef dives on the island, and as one of the more demanding and least consistent.
The site is made up of three plateaus of ancient volcanic rock, now covered in reef and coral. Caves, overhangs and swim-throughs run through each plateau. It sees far less traffic than the popular spots, and the reef is pristine.
Common sightings include reef sharks, turtles, eels and octopus, and monk seals have been known to rest here. Turtles use the overhangs to hide from the tiger and Galapagos sharks in the area.
Read the full guideShow less
Visibility ranges from 60 to 120 ft (20 to 40 m). It is done as a drift dive, and it also makes a good night dive when conditions allow. The site lies well offshore and is often too rough, so groups sometimes turn around and dive elsewhere. On calm days it can be among the most beautiful dives in the Hawaiian islands.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Sea turtleSea turtleReported here · unconfirmed
OctopusOctopusConfirmed present · 2 independent sources
Thin-shelled Rock CrabGrapsus tenuicrustatusReported here · unconfirmed
Saddle WrasseThalassoma duperreyReported here · unconfirmed
Hawaiian Convict SurgeonfishAcanthurus triostegusReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Wedgetail TriggerfishRhinecanthus rectangulusReported here · unconfirmed
Green Sea TurtleChelonia mydasReported here · unconfirmed
Tiger SharkGaleocerdo cuvierReported here · unconfirmed
Eagle rayEagle rayReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
No notes yet. Dived here? Be the first to leave a tip.
Share a write-up or a photo. Submissions are reviewed before they appear on the page.
Nearby dive sites
Shops that dive here
No shops have listed this site yet.