There isn't much to do on Bamboo Island. It's just a small spot in the Andamen Sea about 2.7 nautical miles north of Phi Phi Don. But this tiny, heart-shaped island should not be missed if you love snorkeling and diving.
The entry to this area is 400 THB / Adult, which have to be paid cash to the Park Rangers. There are different rates for Thai nationals, foreigners, adults and kids.
Please note: In some areas additional park fees have to be payed cash to the Park Ranger. Due to the double pricing system it might be different for nationals and non-nationals.