Retired dentist from Florida, age 73. My first trip to Switzerland was about 1970 to St Moritz and the sled run @ Bergun. I have been back several times both Winter and Summer/Fall. The upcoming trip will be Chur, Albula Pass, St Moritz, Innsbruck by bike. I would like to do a side trip to Bormio to do the Gavia P and back by train from Tirano. Any tips for early Sept trip appreciated. Other interest, kayaking Florida spring runs, golf, hiking.