A cave located in the hills. This 500-metre hike takes you up and then into the cave. Parts of the cave can be slippery at times and there are big ledges. Also note to bring closed shoes because of the sharp rocks and a proper light source (there are torches available for rental at the entrance). It can be very humid and hard to breath at certain parts of the cave.
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ถ้ำพระยานคร
Probably the most famous attraction in the national park. The cave is accessible via a short but steep hike through the forest before reaching the cave, around 2 km one way. The first chamber is a sinkhole with a natural bridge on top, and the second chamber has a Royal Pavilion which was built during the reign of King Rama V.
The hike can be substantially shortened by taking a boat (400 baht fee round trip) from Bang Pu beach, which will bypass around 1.5 km, including one hill but there is still around 100 meters of altitude gain in 500 metres. However, it is best to check with the national park beforehand if the boats are running, as they are seasonal.
หาดแหลมศาลา
A nice white sand beach which is the starting point for the ascent to Phraya Nakhon Cave. In order to get there, you need to either hike for 1.5 km up and down a hill or pay 400 baht for a boat ride to bypass the hill (roundtrip), starting at Bang Pu village. Because this is a part of the national park, amenities are slightly limited but there is a restaurant. Because the sand has a mixture of blood, the water is not as clear as that of Hua Hin or Southern Thailand.
ถ้ำไทร
A cave with a chamber, easier to traverse than Kaeo Cave
หาดสามพระยา
Nice white sand beach located in the area of the national park.
ศูนย์ศึกษาธรรมชาติ (บึงบัว) อุทยานแห่งชาติเขาสามร้อยยอด
A large freshwater swamp filled with water lilies. There is a long walking trail that around the swamp where one can observe the fauna and flora in the area, including various types of fish and birds.
ล่องคลองเขาแดง
A boat ride starting Khao Daeng canal with great views of the karst mountains, coastal forests and mangrove forests. The boat ride takes around one hour and can be arranged at Khao Daeng village.