About Who's Been Here Photos Dive Log Revisions Hanauma Bay Sea Cave or "Big Sea Cave" Oahu, HI Max Depth: 51-60ft/16-18m Average Viz: 91-100ft/28-30m Entry Type: Boat Bottom Composition: Rock Rating: 4.38 by 8 divers Fall: 76-80°F/24-27°C View All 8 Members View All 11 Photos Cwise26 11/25/2018 Oahu_Dive_Medic: Avg Viz: 101-110ft/31-34m. Water Temp: 71-75°F/22-24°C. 5/05/2013 Oahu_Dive_Medic: Avg Viz: 81-90ft/25-27m. Water Temp: 71-75°F/22-24°C. 3/26/2013 Oahu_Dive_Medic: Avg Viz: 51-60ft/16-18m. Water Temp: 71-75°F/22-24°C. 3/18/2013 Oahu_Dive_Medic: Avg Viz: 121-130ft/37-40m. Water Temp: 71-75°F/22-24°C. 3/08/2013 Oahu_Dive_Medic: Avg Viz: 81-90ft/25-27m. Water Temp: 71-75°F/22-24°C. 3/06/2013 7/17/2009 11:05 PM

Hanauma Bay Sea Cave or "Big Sea Cave" is a boat accessible salt water dive site, located in Oahu, HI. This dive site has an average rating of 4.38 out of 5 from 8 scuba divers. The maximum depth is 51-60ft/16-18m. The average visibility is 91-100ft/28-30m.

This is a boat dive around the corner from the Hanauma Bay. (normally leaving from Koko Marina) The water here here is normally very ruff. Makes it a little difficult to gear up. But well worth the trouble. Directly in front of the cave the water is about 50ft., but drops down to 90’+ farther out. Inside the cave the is bright, the center on the cave has a very large natural skylight. (much darker on the edges) Inside the cave you can find turtles, whitetip reef sharks and lots of small fishes. A very cool dive! If the water is real ruff, you can hear it crashing and it sounds like thunder.

 

Comments

Winterone - 11/27/2015 10:16 AM Rating Added: 5 Sea was a bit ruff but the dive was incredible. Would highly recommend it to the intermediate diver as a must do. Not a cave or over head environment as such but gives you a wonderful large swim through experience.