One of the ancient tourist attractions in Phetchaburi is located on Khao Luang, a small mountain standing at just 92 meters high. It was built during the reign of King Chulalongkorn (Rama V), who wished to create a temple at the mountain's peak in honor of King Mongkut (Rama IV), who once visited this cave. Inside, there is a beautiful Buddha statue, and a wide opening allows sunlight to stream in, casting stunning light patterns against the rock walls and enhancing the natural beauty of the surroundings.