Phang Nga Bay, ThailandIf you visit Phuket, then it's very worthwhile to also visit Phang Nga Bay. The bay is full of wonderful Limestone monoliths towering up to 300 metres above the sea. The only way to properly see these (that is if you don't own a helicopter?) is to rent one of the famous "Long-tail" boats, pictured here. These can be rented at several locations around the bay.