Went up the canyon to a little lake with some cutthroats. Water temp was 46, some ice was forming in puddles near the lake. Hauled in the float tube. Noticed I have some holes in the but of my waders... Did a couple of laps, caught some cuttys. My ass went numb and my teeth started to chatter. Decided to warm up by hiking out and hit some moving water. Ended up at the North Platte. Didn't have much light left and nothing was rising, gave it a shot anyway. Man i love that river even if it did not give up the goods that day.