Looking up at a boat and divers from the bottom of the ocean

scuba scuba dive swim swimming ocean marine animal fish nature underwater underwater video underwater footage underwater photography coral bleaching global warming enviroment tropical tropical reef conservation protected marine biology travel excitement water activity recreation holiday tourism people divers fins flippers scuba equiptment mask recreational activity padi adventure sport looking up boat blue water blue planet clear water deep ocean swim down ocean floor freediver apnea breath hold ocean surface blackout water sports