Phuket, Thailand - Must do's?

[Sycamore]

Heading out to Phuket on May 4th for 10 days with my girlfriend.

Does anyone have anything they'd recommend? Trips, Visits, things to see etc?

We're both young (I'm 20 she's 17) if it helps.

Thanks !

[Sycamore]

We're staying on Karon Beach.

My girlfriend has her Ocean Diver, I'm currently just training for mine, so for the time being we think we'll give diving a miss, although we're going around the Phi Phi Islands by speedboat where we're snorkelling etc.

It's my first time in Asia, so willing to experience Thailand for what it really is I guess.