Copyright holder
| Copyright Holder: | Danmarks Radio (DR) |
| Website: | http://www.dr.dk/tv |
Film credits
| Cameraman: | Claus Bering |
| Cameraman: | Carsten Behrendt-Poulson |
| Production Organisation: | Laterna Film, Denmark |
Our Nature (Denmark): The Forest Lake (1973)
Also known as: Programme 1
