I've just started swimming! I bought prescription goggles and wow, they have changed my life
okay, I've only been to the pool 3 times so far ... but that's in a week and a half, and I bought a 12-trip ticket so I have to go back at least another 9 times
(am trying to swim for fitness so getting there regularly is important).
I've not had much opportunity to swim places other than indoor pools. Oh! But when I was in Malaysia with my Mum last year, the sea there was AMAZING
so yes - tropical-ish sea FTW! (I suspect the sea around the UK is a lot colder ...)