The place where we spend our summer vacations frequently sees temps around 90F with no wind at all. To escape the heat we drive to the mountains an hour away to take a dip in refreshing swimming holes. That's really summer for us. My girls love the adventure of scrambling up rocks to jump daringly in crystal-clear - and quite cold - mountain waters. I'm usually in the water with them and they have a blast. Then they explore the area, set up a "camp" and claim their picnic lunch so they can eat with their friends far from the adults. Sometimes we find small waterfalls or they can slide on their bottoms on slippery rocks. They love it and so do it. Beats crowds at the chlorinated water parks any day.