The trod to the right of the tourist path up Bowfell is worth taking, as long as you know where it is; the rocks at the start of it just after Ore Gap will be slippery, as will the rocks near the top. The descent to Three Tarns is pretty eroded these days. The grass on the left, and lower down, on the right, is better than the path itself, though in places the path is unavoidable.