See top san antonio attractions from both a personal cruiser and double decker bus tour with this sightseeing package between the two narrated tours youll see the alamo the institute of texan cultures san fernando cathedral la villita and other popular sights take a 15 hour narrated tour of san antonio aboard a two wheeled personal vehicle called a cruiser that looks like a cross between a bike and a segway view san antonio from the open air upper deck of a double decker bus during a 50