During a trip to Palau in 2010, we had the opportunity to dive the famous “Chandelier Cave”. The cave is actually three separate chambers before it dead ends. There are air pockets in the ceiling of each chamber. Once we reached the final chamber, our dive guide (the one in the red shorts) had us turn all our lights off. Without lights, it was quite easy to see the glow of the entrance and know which way was out. This picture is the entrance to the cave in 15 feet of water.