Sandiao Ridge Eco-Friendly Tunnel Introduction
The section from Ruifang Station to Shuangxi Station has a total of 9 old tunnels, giving rise to the Taiwanese proverb "One Coin Drills Nine Holes." Among them, 4 old tunnels have been transformed into bicycle paths. The SanDiaoLing eco-friendly tunnel, reopened after 30 years of disuse on the former Yilan line, is 3.19 kilometers long and created the first "reinforced concrete bicycle path" in Taiwan. The designer utilized pool designs to create a stunning mirror reflection that transitions from dark to light at the tunnel entrance, harmonizing with the lush green mountains of SanDiaoLing. There is a chance to encounter trains as well. To ensure safe two-way traffic from SanGuazi Tunnel to the hanging bridge, bicycles must be walked through. The SanDiaoLing Tunnel and SanGuazi Tunnel bike paths connect the tourism routes of Shuangxi Mudan and Ruifang SanDiaoLing, representing the latest route in the low-carbon travel initiative of the Youth Mountain and Sea Line. To reduce traffic impact and considering limited space within the tunnel, visitors must apply for entry online in advance (click here to go). Along the way, there are explanatory signs detailing the features of the area, and guided tours are available upon reservation through the designated website.
