The swimming coach can swim?
The new 10 meters 20 meters 50 meters can be excellent Sun Yang 200 meters world record of 265 meters vertical flat about 400 meters underwater no problem, if you coach national athletes of 150 meters is no problem
A regular swimming pool must be a pool of two people, a person diving, there must be a person on the shore to see. Swimming, adults in diving, even without oxygen, will not open his mouth underwater, if not at this time, even if surfaced, then will cause yourself to suffocate. At the same time, diving is a challenge to themselves, especially those who can swim, usually diving almost without oxygen, only to surface, but the open swimming pool environment is too complex, prone to accidents,
Basically, when the accident surfaced, then the man was basically hopeless. For example: I used to swim coach, in a 60 meter swim, when it finally hit the floater floating pool, it will not float, fortunately, we are on the shore watching, timely rescue, when we put on to the hospital after the rescue by the coach, doctor tell us if he later surfaced about 10 seconds can cause lifelong disability, if the late, it is basically dead. So this is the lesson of blood, huh?
