Saturday--Back to Walden Pond for one last day of Summer. Water supposedly a balmy 68 degrees. Got in one more swim. Tried to really appreciate it, as it may be the last outdoor swim of the season. In the evening, if you stand in the water close to shore, you will soon be surrounded by a circle of curious fish. Eventually some of the braver ones (probably teenagers) will come in for a closer look and an exploratory nibble. But worry not--since they have no teeth, these are just a series of tiny bumps against your leg.