There's a reason Banana Beach on Ko Hey is so hush-hush – with glittering waters and a seafood shack just steps from the sea, this place is brochure cover stuff. Speedboat over the Andaman Sea to spend the day on this tropical getaway. You'll have loads of free time to kick back and relax. Plus, you'll be able to trying snorkelling at a couple of different points if the weather plays ball, and you can hop in a see-through kayak – they're perfect if you want to get a look at the local fish that live here without getting wet.