Close-up of the wall at Pen-y-Garreg Dam
Close-up of the wall at Pen-y-Garreg Dam

You can see the windows cut into the dam wall, behind which runs a very narrow, dark passage. The dam is opened several times a year and you can walk through - if you dare!

Date: 14/02/09

Location: Elan Valley, Mid Wales

Close-up of the wall at Pen-y-Garreg Dam

You can see the windows cut into the dam wall, behind which runs a very narrow, dark passage. The dam is opened several times a year and you can walk through - if you dare!

Date: 14/02/09

Location: Elan Valley, Mid Wales