SCUBA stands for Self Contained Underwater Breathing Apparatus. (retreatvacations.net)
Injury sustained while taking part in mountaineering where ropes or guides are normally used, hang gliding, parachuting, bungee jumping, racing by horse or motor vehicle or motorcycle, snowmobiling, motorcycle / motor scooter riding, scuba diving involving underwater breathing apparatus (unless PADI or NAUI certified), water skiing, snow skiing and snow boarding; (sevencorners.com)
DISCOVER SCUBA DIVING Learn basic skills in the swimming pool to be more familiar with underwater breathing before you face with the Indian Ocean! (scubafroggy.com)