Cool Holiday in the Maldives- advice please

Maldives advice- been before? I’ve booked this incredible sounding holiday
in the Maldives with a company called Playaway. Its all inc, but is aimed
the at the discerning
I’ve-had-enough-of-puking-teenagers-but-still-want-to-have-fun crowd.
There’s a spa, watersports, beach cinema and DJs, and it looks amazing.
Problem is, I’ve never been south of Paris! Can any one send me any advice
on tropical Island getaways? I presume high factor sun cream is a must,
but other than that I’m stumped. Help Please.