The Erlachsee is a protected former quarry lake in the Oberwald in Karlsruhe.
There is a way around it. At one point (where my 2 photos come from) is a viewing house with a good view of the lake.
Beautiful quiet lake in the nature reserve. Fenced, therefore the Uferbreich not accessible.
The path leading north to the lake and a hut is blocked by a fence in April 2017 for the first time. By 2016, the was always walkable, but partly piled up the garbage at the hut.
Great park around the lake