Apart from the roads within the Peter Island Resort there are no roads on Peter Island. Contact Prospect Reef Resort , Tortola, about possible ferry schedules to the island.
Phi Phi have the most beautiful shade of water around and the surroundings are just stunning - but underneath there's a lot of trash. Locals don't care about collecting rubbish and saving the environment too much unfortunately. There are many local restaurants and places to visit which is nice.
Phuket is a beautiful island, a bit touristic which often means expensive too but it's worth to come and explore. There are many tours in offer, food is as great as everywhere in Thailand, nature is beautiful. There are so many beaches it's hard to explore all of them.