Left Wenatchee Confluence SP intending to spend the night at Lake Chelan SP. Busy Alt US 97 along the Columbia was tolerable but hot to begin with. Stopped to see a roadside pocket park above the river in Entiat... a nice bicycle side trip. But no real food there. Disappointing coffee stand stuff. (The Mexican food truck didn't open until 11:00.) Heck, I was at Lake Chelan by noon and, after discussion with park person, decided I could easily get up the road another 22 miles to Alta Lake SP (even surmising that it would be a climb to the "Alta" part). BTW the Navarre Coulee Rd up to L. Chelan was a climb, but worth it. The summit vista just before descending to the lake was stunning... then FUN! I would say the rest of the ride was fun except that I got heat exhaustion. Just before the turn-off up the Methow Valley Hwy at Pateros, I stopped to read an historical marker sign. My eyes could not focus. I knew I was in trouble. I quickly drank a pint of hydration water and made it to the turnoff, pretty sure there was some kind of fruit stand or something around the corner. It turns out that it is a lovely little bakery-cafe with a nicely shaded garden. I had one of the BEST multi-berry coffee cakes I've EVER had and a cold coconut water. After an hour's rest I was ready to go. However, I would NEVER have been read to climb that hill to Alta Lake... and in the hot afternoon sun! (I should have soaked my jersey but I hadn't thought of that as a strategy yet.) It was relentless and I was unrelenting. Happy to have made it. Nice little park with a small kiosk store at which I was able to buy a couple of LaCroix fizzy waters and then dunk in the lake. Whew!