Luckily here it only rains for the odd hour in the day and often in the night on Phi Phi, so it's never too inconvenient. But for those who had planned on lazy days by the pool or sunning it on the beach here are just a few suggestions:
1) Treat yourself to little boat trip to a luxury resort & Spa - Zeavola on the north end of the island
2) Rent a DVD player and watch a great movie with your hfmaily and friends - most of the shops who sell dvd's have rental machines too.
3) Listen to great music and enjoy the view to Phi Phi Ley Island while having a coffee or hot chocolate undercover @ Love Cafe Phi Phi
4) Snorkeling - your gonna get wet anyway right? plus its cooler in the rain & less chance of burning your bum. Ask any longtail boat driver or tour agent and they'll suggest somewhere to go and provide the kit.
5) Diving - who cares about the rain when your underwater. Phi Phi has some of the best dive sites and with so many Dive shops on the island, there's always a trip to tempt - you don't even need to have done diving before - they'll teach you or just give you a taster.
6) Get a tattoo - Phi Phi is one of the best places to get a bamboo tattoo, there are many brilliant tattoo artists on the island and the tattoo shops often double as bars and can be great places to hang out with the local Thai.
7) Your on holiday right? so that means you can drink all day! so why not watch the sea from a dry spot...several of the beach bars are undercover, Bohemian bar and Sunflower would fit that bill.
8) Massage - there are about one million massage shops on Phi Phi - prices for start at around 150 baht up to 300 to 500 baht for full body. What better way to while away a rainy hour.
9) There are several Gym's on the Island now, you could spend an hour burning off the extra beer & bucket calories.  Phi Phi Villa Resort charges 350 per day, which includes the use of their pool.
10) Lastly, for the more intrepid who will cover up in one of those plastic mac thingys, a walk to viewpoint would be awesome in the rain, the wet smell of the jungle and not so hot walk, as here the rain seems to cool things down.

Enjoy!
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