Information provided by Visit Tucson:
Every Thursday evening at dusk, in June, July, and August, docents from the Arizona-Sonora Desert Museum are stationed at two "Bat Bridges" in town: River/Campbell and at Pantano River Park (located at Pantano/22nd). Every night at this time of year, huge clouds of Mexican free-tailed bats swirl out from under Tucson bridges at sunset and fly into the twilight sky. The bats start flying at sunset (about 7:30 p.m.) and usually fly north. This is a great opportunity for the entire family to enjoy beautiful sunsets and appreciate firsthand this awesome spectacle. Docents will have bat detectors and hands-on materials and will be available to answer questions. We recommend arriving 40 minutes prior to dusk.
Dates: July 25, 2013 - August 29, 2013
Venue: River/Campbell and at Pantano River Park (located at Pantano/22nd)
Time: Starting: 7:30 PM