Well, I'm back from my short trip to hell. Worked out OK, I guess. I grew up in the south WITHOUT air conditioning. Used to cut my lawn in Texas when it was 90+ and thought nothing of it. But having spent the last 20 years around Seattle, I was TOTALLY unprepared for the humidity. Heat wasn't a real problem until you added in the 70-80% humidity.
We went with the morning/evening strategy that worked well in Dallas. Out early in the morning, bang away at the rides, inside for lunch, then back to the hotel and pool to relax and wait for dinner. THEN, around sundown, back out to the parks for a little cooler evening action.
Two things that really shocked me. The number of sunburned people - I mean really bad burns. Along with the lack of sunscreen being used. I see melanoma in some of these people's future.
The other was the idiots who brought their 3-4 month old child out in the middle of the day with no shade protection. Shoot, saw several who had to have been no more than a month old. And the kids were almost always freaking. I find that behavior inexcusable.