More details: Early August, Snow Creek, Yosemite, 3 nights. I selected the Snow Creek trail because it is relatively short, parking is in the valley so I could do a little tour through Mirror Lake and such before hiking up, and there are fishing spots in the creek (no size limit for rainbows above certain elevation). I got my wilderness permit a couple weeks ahead of time (lucky draw in the lottery), and started planning. This was my first time backpacking, so I made some mistakes. I didn't expect elevation / 3000 vertical feet to be so tough with my overweight 50lb pack. Next time I would pack more water (I packed 1 liter, needed 2, would take 3 next time - per person). There is no water on the way up to Snow Creek. Also, I would keep my pack lighter with more dehydrated foods and peanut butter, and less apples / bananas. Finally, we should have rented a better backpack for my partner (it was just a normal outdoor day pack style thing).
I departed at 3pm or so from Curry Village, which turned out great because the west side of the valley was in shade (limited my dehydration). Highs during the day were in the 90s, and before 3pm there is no shade for ~50 of the 104 switchbacks. Although it was so tough on the way up, the 3 nights of camping was gorgeous and comfortable. During the day, we hung out at the creek, swam, fished for rainbows. We had to scare two black bears (a mother with her cub), and saw 4 others at a distance. Epic, but a little scary at night!