The Sandiaoling Bike Tunnel is a journey through history, nature, and innovative design. You don’t need to be a cycling enthusiast or history buff to enjoy this immersive experience—it’s a perfect escape for anyone seeking a unique adventure close to Taipei. The Sandiaoling Tunnel was originally built in 1922 as part of the Yilan Railway Line, during the Japanese colonial era. At the time of its construction, the tunnel was the first in Taiwan to utilize electric rock drilling technology. The tunnel served for over 60 years before being abandoned…
