Have you ever been able to swim and dive after having an eye vision surgery? What do you need to pay attention to?
In fact, you do not have to swim, but personally think snorkeling can swim, it may be more fun. If it's the kind of back oxygen bottle, it doesn't matter
No, swimming is fine. But some people are afraid of water, especially in the sea water, there will be a sense of weightlessness, helpless and boundless, and some people are not used to mouth breathing,
Fear of choking water with your nose causes panic. Reported the course to study well, when you can dive, also can swim probably ~ my colleague is such!