Tunnels in Taiwan are more than transport links—they’re scenic, historic, and sometimes dramatic landmarks carved through mountains, cliffs, and coastlines. From marble tunnels in Taroko Gorge to abandoned railway tunnels turned cycle paths, Taiwan’s tunnels tell a story of engineering, resilience, and geography.
Tunnels in Taiwan: Engineering Through Mountains & Time
Taiwan’s rugged terrain—dominated by steep mountains and fault lines—has made tunnels essential to its development. Over time, these tunnels have evolved from hand-cut passages and military routes into modern rail, road, and cycling corridors. Many are now attractions in their own right, offering dramatic scenery and cultural insight.
Famous Tunnels You Can Visit
- Taroko Gorge Tunnels (Hualien) – Narrow cliff-hugging tunnels like Swallow Grotto and Tunnel of Nine Turns.
- Caoling Tunnel – Taiwan’s longest cycle tunnel, once a railway line, now a coastal bike route.
- Jiashan Military Tunnel (Kaohsiung) – Historic coastal defence tunnels carved into rock.
- Qingshui Cliff Tunnels – Scenic rail and road tunnels beneath towering sea cliffs.
- Shifen Old Railway Tunnels – Atmospheric tunnels near waterfalls and lantern towns.
Why Taiwan’s Tunnels Are Special
- Carved through marble, granite, and coastal rock
- Blend of Japanese-era, military, and modern engineering
- Many are pedestrian- or bike-friendly
- Often paired with dramatic scenery (cliffs, rivers, ocean)
- Free and accessible attractions
Three Standout Tunnel Experiences
1) Caoling Tunnel (宜蘭)
Stretching over 2 km, Caoling Tunnel connects Yilan and New Taipei along the coast. It’s cool even in summer and forms part of one of Taiwan’s most scenic cycling routes.
2) Tunnel of Nine Turns (Taroko)
A short walking route with multiple tunnels and bridges, showcasing Taroko’s raw marble formations and the power of the Liwu River below.
3) Jiashan Military Tunnel
Located near Zuoying and Cijin, this tunnel complex offers insight into Taiwan’s Cold War defences, with sea views and cool underground passages.
Quick Facts
- Terrain: Over 70% of Taiwan is mountainous.
- Oldest tunnels: Many date back to the Japanese colonial era (1895–1945).
- Best-known: Taroko Gorge tunnel system.
- Visitor tip: Helmets are often required in Taroko tunnels.
FAQ
Are Taiwan’s tunnels safe for visitors?
Yes—tourist-accessible tunnels are maintained and monitored. Always follow park rules and weather advisories.
Can I walk or cycle through tunnels?
Many old railway tunnels (like Caoling) are dedicated to cyclists and pedestrians.
What’s the most scenic tunnel?
Swallow Grotto in Taroko Gorge is often considered the most dramatic.
Do I need special equipment?
Comfortable shoes and a helmet (provided in Taroko) are usually sufficient.
Image credits: Wikimedia Commons.
