premise: At the south end, boat cruises start out from Peschiera, Sirmione, and Desenzano, particularly recommended for dramatic views of the east shore's mountains and the beautiful Punta di San Vigilio, with its little church and 16th-century Villa Guarienti.
hypothesis: Boat cruises leaving Peshiera cost about 40 dollars, while cruises departing from Sirmione and Desenzano cost over twice that much.