Hanauma Bay was my all time favorite place of Oahu Hawaii but unfortunately, I have way too many photos to share. It's a large circular bay which is located in the core of an inactive volcano. One wall of the crater collapsed, and the interior filled up with sea water forming a spectacular partially closed in coral reef. It has a wide variety of extremely interesting organisms. The water is a clear light aqua blue and there are deep drop offs all over the place. You can go from 2 feet deep to 30 feet deep in one step.
It's a bit nerve racking because nobody seems to want to go out deep where the action is and the they warn you of the riptides. The initial plan was to swim around the perimeter of the bay. I made it halfway around but got so beat up on the large lava rocks and the coral reef. So I just ended up just swimming across the middle instead. The information desk warned of sharks coming in from the open ocean so I did not want to draw any attention from them while bleeding from 3 different locations lol. The waves and the undertow and powerful sun proved a little too much and I hadn't really recovered from Shark's Cove the day before. The sun burnt my neck, back, legs, ankles, and feet. Snorkeling may be the only activity which allows to get sun burn on the bottoms of your feet. Had to take the following day off because I was running out of body parts that were not beaten or fatigued. After returning home I didn't get off the couch for 16 hours. The Go Pro lost about 80% of the shots and it was a great disappointment. Especially some of the deep cobalt blue fish I was chasing all over the bay. Jacques Cousteau would have been proud. In fairness to the device much of the error was human and only part of it was the Go Pro.