Scuba Diving
One of my favorite hobby's
"Scuba diving is a water sport that involves breathing air from a tank while underwater. Scuba is an acronym for "Self Contained Underwater Breathing Apparatus". Most scuba divers are recreational divers who explore underwater environments such as lakes, rivers, quarries, kelp forests and coral reefs. There are also people who scuba dive for work including public safety divers, marine biologists and many others."