Although it is a ruin, it is certainly worth visiting. It is free to visit. It dates from the 12th century and stands next to what was. (and still is a crossing of the river. There are stepping stones which it is possible to cross with care. But probably not recommended for the unsteady. Plus they can be covered if the river is high. Across the road from its entrance us The Pelican pub. Another old building and a place to eat and get refreshed. Nearby are stables too.