The ruins of the main hall of Wat Kru Si Hong
Like most of the ruins of the Aranyik, the original name of this temple is unknown. It is one of the oldest temples of the area, dating to the fourteenth or fifteenth centuries. None of the remaining structures is all that impressive on its own, but the temple must have been quite extensive in its day, so the site as a whole is quite interesting, especially given the thick covering of trees all over the grounds.
Individual structures here are quite well-labeled, so as you wander down the brick-paved trail you'll find water wells, residences and privies. The path takes a circular route all around the temple.