Active visitors with an adventurous spirit can hook up with Bike the Big Apple, which offers guided half-day, full-day, and customized tours through a variety of city neighborhoods, including the fascinating  Bronx and Harlem; a "Secret Streets" tour that takes you over the legendary Brooklyn Bridge, through Chinatown and the East Village, to Ground Zero and around Wall Street. You don’t have to be an Ironman candidate to participate; tours are designed for the average rider, with an emphasis on safety and fun; shorter rides are available, but the rides generally last around 5 to 7 hours. Tours are offered year-round.