The Fortress in the Lake - Llangorse Lake, Powys
S01E04 - Airdate: 1994-02-06
Runtime: 60 min
Recorded between 16 and 18 September 1993, the team tries to discover what happened to a Dark Ages palace located on a man-made island in the middle of a lake. Finds: Shale finger ring from 9th-10th century. Experimental demonstration: Dark Age boatbuilding.
Episode details and rating from TVmaze.