vincez wrote:yes you need to know how to swim, if you cant swim then you must be at least know how to swim or survive with life jacket and not be afraid of water! correct me if im wrong

It's ur benefit if able to swim. If that airline didn't req swimming, u no need to worry.
when u r selected u will be trained hard on ditching and using life jacket in water.
(I'm ex-cc, answered on behalf my bf - stylome)