Second time this has happened. Load up the pack, head out for a North Cascades overnighter. Perfect weather, no bugs, just rambling through swift flowing streams in some sandals.
Get to my overnight spot early... kick around, find a camp spot, decide against it, find a better one, set up, scramble the nearest high point, eat... it's 3pm.
Why quit hiking on a perfect day? Break camp, continue on, check out the lake, take a side trail, take some photos, wade into a creek (early summer in the Cascades is, well... the bees knees). Talk to some ambitious mountain bikers, impromptu ptarmigan photo shoot, lie to some boyscouts about distance to the pass.
Before you know it, loop is done, walking back to the car. Could have avoided this had I shunned the UL movement. Now I'm at home with nothing to do but drink beer and watch Korean movies.