Diver with scooter confronts a goosefish. Bahamas, Lee Stocking Island 239. French angelfish looks larger than observing diver. Diver deploys respiration bubbles over coral heads. Diver with rebreather and heated dry suit prepares to descend into the ice.
Divers are able to collect rock cores from vertical walls on a coral reef.
Divers test rebreathers which are useful for extending bottom time. Diver with a full face mask and underwater radio observes large vase sponge. Surface supply delivers unlimited air to the divers, but keeps them on a leash. Diving bell serves as a transport and refuge for divers. Dive bell equipped with compressed air allows divers to decompress underwater.