Introduction to Phi Phi Island: Located in the Andaman Sea in southern Thailand, it consists of Big Phi Phi and Little Phi Phi, and is the estuary of the Nu River. The two islands of Big Phi Phi and Little Phi Phi are connected by a "corridor". This corridor is the most lively place on Phi Phi Island, densely populated with many hotels, restaurants, bars, diving schools, travel agencies and small vendors. On both sides of the corridor are two very beautiful bays, one called Ao Lo Dalum and the other called Ton Sai Bay.