On Sunday, during the long weekend, we went with some Indian neighbors to Roman Nose state park. There's a nice, cold stream (55-degree water) that runs underground and cascades out of a cave at one point -- the kids really enjoyed it.
Like any Indian gathering, there was a lot of food. We'd decided to take a quick tour of Red Rock Canyon, which was only about 10 miles off our return route to Norman. It got late in the canyon, and everyone was hungry, so we decided to snack on the leftovers of our lunch. Except that the "leftovers" were enough to feed us for dinner too. We had not just overestimated the food that we'd need -- we'd overestimated by a factor of two.