Wat Saphan Hin — "Temple of the Stone Bridge" — stands on a low hill about 3 km west of the central walls, in what was once a forest meditation zone of the Sukhothai kingdom. The name comes from the causeway of large slate slabs that leads up to it; the climb is about 200 metres, with views back across the plain.
At the top, only the vihara walls and the standing Buddha remain. The image is 12 metres tall in the pose called Pang Pratan Aphai — "dispelling fear" — with the right hand raised at the shoulder, palm outwards. It is one of the more atmospheric corners of the park, particularly in the late afternoon when the air cools and a few monks may be at the small contemporary shrine nearby. King Ramkhamhaeng's stele records that he came here on his elephant Ruchakri to make offerings on holy days.