In order to be scuba diving certified , do you need to know how to clear water from a mask ?
The international rules of competition contain the following four objectives for Sport Diving - firstly , encourage the further development of recreational scuba diving equipment and technique ; secondly , promote scuba diving activities in localities that are remote from suitable diving sites or where open water activity may be prohibited by seasonal or adverse weather conditions ; thirdly , to provide an opportunity for recreational scuba divers to practice and improve technique ; and fourthly , the promotion of scuba diving carried out in swimming pools as a spectator sport for underwater diving enthusiasts .