I am not sure exactly where, but somewhere in the forest there is a medium sized cliff made of 3 big rocks, you can walk on top of them and go to the very end of the cliff, but you can't go back. It's a sort of a "step" that you can cross, but is "too high" for you to cross from the other side. You just sort of "vibrate" when close to the edges of the step and V doesn't help at all.
Afterwards I tried to get down from the other side, i managed to climb down without any "my leg is in pain" messages, but at the final drop, which was about 1.5m high, I died about 0.2 seconds after the message "My leg is in pain" displayed in red. Please adjust the fall damage accordingly...
Keep up the good work! :)