New Taipei / Fulong

Old Caoling Bike Tunnel & Fulong

Rent a bike near Fulong Station and ride through a 2,167 m railway tunnel from 1924, with red-brick walls, old-style lamps and the New Taipei–Yilan boundary marker halfway (about 20 minutes one way). Entry is free; on weekends and holidays only cyclists may enter, and Fulong Beach is right by the station.