I seem to remember it being vaguely thigh deep but not too fast moving. I just took the mountain marathon approach in that I needed to get to the other side and had to just 'man up', but it is was pretty nippy even in spring. The trudge uphill afterwards soon warms the legs back up again, though! I must get back to the Lakes again as I fancy a BG attempt this summer - a dodgy knee mucked up my plans this summer. I think Leg 3 is the main bit I want to recce, as I have only done that once after having run Leg 2 through the night, and my navigation was hardly triumphantly good!