Phraya Nakhon cave is a large cave which has a big hole in the ceiling so light from the sun can come through into the cave. At the top of the hole, there is a stone bridge known as Death-Bridge. It is so called because many wild animals fell from the bridge. Below the cave is a jungle, where most of the trees are tall. There are a lot of beautiful stalactites which look like waterfalls. Many kings of Thailand in different reigns went to see this cave and left many things to show evidence of their visit. The outstanding feature of Phraya Nakhon Cave is Thpone, a historic site that made during King Rama 5’ reign (King Chulalongkorn). 10:30AM - 11:30AM is the best time to see the Thpone because the sun shines over the Thpone at that time and it is a very beautiful sight. Thpone has since become the symbol of Prachuap Khiri Khan Province.