Sixty miles south of the Republic Brewery is a perfect Sunday afternoon beach called Swawilla. Its a narrow stretch of sand and cobble that travels best in boots when its sunny. Cold weather or hot, the breeze will be with you either way, so prepare for it. Wear the right hat, your favorite jacket, and things will turn out okay. This is Atwater Country. A vivid, rugged land where well-laid plans can change overnight. One day you're unraveling the history of Eocene mylonites,