I'm pretty sure this is the first sign I'm getting old...
In my twenties, I could hang out in the park all day, and still be fine to go out at night.
In my thirties, I spend all day in the park, and I start to make ridiculous excuses, like, "The sun is tiring, and what with all that reading! If we're going out tonite, I need a nap."
Anyway, please vote...and stay out the sun, it's tiring.