Scuba diving instructor and student completing hovering skills in shallow water, Naama Bay, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa

A male skier jumps off a 100 foot cliff known as the diving board in the Grand Targhee Backcountry, Wyoming.

Female diver doing giant stride off dive boat, Negril, Jamaica

SCUBA diving instructor Anthony Manion practices skills with four students in a hotel pool, Maui, Hawaii, United States of America

scuba diving lessons in a swimming pool, recovery, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, blow out diving mask, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, giving OK signal, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, giving OK signal, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, buddy breathing, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, submerge, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, reaching regulator, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, buddy breathing, Germany, Munich, Olympiabad

scuba diving lessons in a swimming pool, blow out diving mask, Germany, Munich, Olympiabad

Girl (6-7) swimming underwater

USA, New York, Girls (10-11, 10-11) in swimming pool

Father with two daughters (6-7,8-9) swimming underwater

Mid adult couple swimming underwater

Father with two daughters (6-7,8-9) swimming underwater

Family with three daughters (4-5,6-7,8-9) swimming underwater

Mid adult couple swimming underwater

Father with two daughters (6-7,8-9) swimming underwater

Girl (8-9) swimming underwater

Girl (8-9) swimming underwater