My all-time favorite activity as a child. Our neighbors had an awesome swing-set and once you reached a certain height, one of the legs would literally come out of its hole. So dangerous! Our private elementary school had a gigantic swing-set with the most amazing swings. You could soar so high that even when you stopped "pumping", it could take a couple of minutes for the swing to calm down enough to disembark! I can remember being late to class a couple of times! Well worth it!