At the top of the 395 steps is Wat Thamikaran, a revered monastery housing a Buddha footprint.
The monastery forms part of Wat Thamikaran, sometimes known as Wat Khao Chong Krachok, with the rest of the complex lying to the west of the hill and to the north just over the bridge.
The hill is best climbed in the morning or late afternoon, as the views are better then and there's little shade on the way up. There is a hole or tunnel in the mountain, which appears to reflect the sky and the name of the hill translates as mirror tunnel mountain. The tunnel can be reached from the wat grounds.
This wat and hill are completely overrun by monkeys who will not shy from leaping at you and chasing you around; this is definitely not an experience for those with a phobia of monkeys. Don't carry anything they want -- not even a bottle of water.
To get there, walk north along Sarachip Road and you will come to the stairs running up to your right.