That's what I was thinking. First of all, they're underwater the whole time. And scuba divers are supposed to have full body wetsuits.
The activity should probably be surfing instead.
Fairly certain UV rays travel through translucent surfaces as well, which is essentially what water is. But don't use me as a credible source; I am merely a meagre, snivelling little guest
The activity should probably be surfing instead.