Antong Tunnel Introduction
One of the must-visit military attractions in Dongyin is the Andong Tunnel, a large combat preparedness tunnel carved through the site of the Dongyin Command - Erchong Mountain. It was built around 1971 during the Cold War period and was opened to the public in 2004 after being renovated by the Maritime Administration following its release by the military in 2002. The entrance of the tunnel features a camouflage exterior, located next to the training class area. Descending from the entrance involves traversing a steep slope with approximately 464 stairs, leading into the tree branch-like, intricate, and expansive Andong Tunnel. The interior of the tunnel stretches about 300 meters through Erchong Mountain, featuring eight corridors along its long path, including command rooms, dormitories, operational rooms, ammunition storage, washrooms, and even pigsties, all connected to the seaside. The observation openings, situated right at the cliff edge, were historically gun ports, and have now become great viewing platforms for sea, seagull, and fjord watching. Looking out from the openings, the rocks are named for their different shapes, such as "Indian Head" and "Puppy Head," making this location worth exploring for visitors. Exploring the tunnel reveals the original construction features, which are of great touristic value. Every April, conservation birds like black-tailed gulls and arctic terns migrate from Japan to breed around the tunnel entrance and surrounding reefs. From the viewpoint, the sight of the blue sea, clear sky, peculiar rock formations, and flocks of seagulls is breathtaking, drawing many bird lovers here every summer. Note: 1. A complete visit takes about 30-60 minutes, and the tunnel stairs are steep and descend; it is advisable to be mentally prepared for the uphill return trip. 2. Please remember to switch the lights on and off when entering and exiting the tunnel, as it is steep, and vehicles should not enter! 3. Terns are sensitive to noise, so please keep your voice down when entering the Andong Tunnel for bird watching to avoid disturbing their nesting.
