The biggest plughole

Two plugholes, each 24m in diameter! They are the over flow (spill way) outlets for a dam.

Ladybower Dam was constructed between 1935 and 1945. WWII delayed its progress. When it was finally completed it drowned two villages. It is part of a three dam system in the Derwent Valley. One of the other dams is where the Dambusters pilots practiced before bombing a dam in Germany, as shown in the old movie "The Dambusters."

The dams supply drinking water for the East Midlands and are surrounded by lots of walking, cycling and mountain biking trails, and a couple of pubs. If we'd known more before we went, we would have hired bikes, but we just had lunch at a pub and went for a bit of a walk around the dam.