Far up in the great mountains following the main road north. On the souther end of the bridge, there is an Old Altar and a Stone Bench, you can sit there and enjoy the view. On the northern end of the bridge, there is a signpost. Some further away to the north, when following the main road, you should notice a small wooden staircase leading downwards. Ultimately, it will lead you to a small Bandit Camp by the lake.