Avalon, Catalina's only real town, extends from the shore of its natural harbor to the surrounding hillsides. Its resident population is about 3,500 but it swells with tourists on summer weekends. Most of the city's activity, however, is centered on the pedestrian mall on Crescent Avenue, and most sights are easily reached on foot. Private cars are restricted and rental cars aren't allowed, but taxis, trams, and shuttles can take you anywhere you need to go. Bicycles and golf carts can be rented from shops along Crescent Avenue.