By Michael Lanza
After hiking 1,000 vertical feet uphill on the dusty Upper Yosemite Falls Trail in Yosemite Valley, baking under a thermonuclear Sierra sun, we sat on rocks for a snack and a much-needed break. My seven-year-old daughter, unprompted, blurted out, “I’m tired and hungry!” My nine-year-old son was still fuming over having been woken up earlier than he prefers (which was 11 a.m.) for this hike—although we were broiling in the sun precisely because we didn’t start even earlier, when it was cooler. He groused, “If you’re going to wake me up that early, it’s your fault if I complain.”