Andong Tunnel Introduction
The Andong Tunnel, one of the must-visit military attractions in Dongyin, features a long staircase and is a massive wartime tunnel carved through the location of the Dongyin Command - Erchong Mountain. Constructed around 1971 during the Cold War, the military released the tunnel in 2002, and the Matsu National Scenic Area Administration undertook renovations, allowing it to open for public tours in 2004. The tunnel entrance, adorned with a camouflage exterior, is located next to the training class area. Visitors descend approximately 464 steps down a steep slope from the entrance, entering into the Andong Tunnel, which branches out like a tree, offering a unique and extensive underground experience. The interior of the Andong Tunnel, which cuts through Erchong Mountain, stretches about 300 meters long, featuring eight passageways along the corridor that include living quarters, dormitories, an operations room, an ammunition depot, washrooms, and even pigsties, all leading toward the seaside. The observation holes, situated on the cliffside, were once cannon ports but have now become the perfect viewpoints for enjoying the sea, seagulls, and fjords. From the openings, various rock formations are named after their unique shapes, such as "Indian Head" and "Little Dog Head," making it an intriguing spot for visitors to explore. A visit to the tunnel showcases the restoration of its internal structures, providing significant touristic value. Around April each year, conservation bird species such as black-tailed gulls and whiskered terns migrate from Japan to nest and breed around the tunnel entrance and nearby islands. From the observation platform, the stunning blue sea and sky, peculiar rock formations, and flocks of seagulls create a breathtaking view, attracting many birdwatching enthusiasts during the summer. Notes: 1. A complete visit takes about 30-60 minutes, and the steep staircase requires mental preparation for the uphill return. 2. Please remember to turn off the lights when entering and exiting the tunnel. The tunnel is steep, and vehicles are not allowed inside! 3. Terns are very sensitive to noise; please speak quietly when entering Andong Tunnel for birdwatching to avoid disturbing the nesting terns.