A year later, another trip to the fascinating and beautiful Sheldon Church Ruins near Beaufort, S.C.    Last summer, I waited in my car 20 minutes for a huge thunderstorm to let up.  This time, it was clear, warm and sunny.   And there were about seven of us on a trip to Savannah.  We threw the frisbee, took pictures and marveled at the peace and loveliness of the setting.