Andong Tunnel Introduction
An Dong Tunnel, one of the must-visit military attractions in Dongyin, features a long staircase leading to a massive battle preparation tunnel carved through the command center located in Erchong Mountain. Built around 1971 during the Cold War, the military released the tunnel for public access in 2002, and after renovations by the Matsu National Scenic Area Administration, it was opened for visits in 2004. The tunnel entrance, adorned with camouflage, is situated right next to the training class building. Descending through an initially steep slope, visitors navigate approximately 464 steps to enter the sprawling An Dong Tunnel, which resembles a tree branch structure, offering a unique experience of interconnected pathways. The interior of the tunnel, which cuts through Erchong Mountain, stretches about 300 meters. Along the corridor, there are eight passages, including a command room, large and small dormitories, a Zhongshan room, an operations room, an ammunition depot, washing rooms, and even pigsties, all leading toward the seaside. The observation openings overlook cliffs by the sea, which once served as artillery points, but now provide the best vantage points for viewing the ocean, seagulls, and fjords. Visitors can gaze out from the openings, where rock formations have been named "Indian Head" and "Puppy Head," making it a worthwhile exploration. Inside the tunnel, various constructions have been restored, offering significant tourism value. Around April each year, conservation birds like the Black-tailed Gull and the Arctic Tern migrate south from Japan, nesting and raising their young around the tunnel entrance and nearby reefs. From the viewing platform, the stunning scenery of blue ocean, sky, strange rocks, and flocks of seagulls is awe-inspiring, attracting many bird enthusiasts each summer. Notes: 1. A complete visit takes about 30-60 minutes; the tunnel has steep stairs going down, and visitors are advised to mentally prepare for the uphill return. 2. Please remember to turn lights on and off when entering and exiting the tunnel. The path is steep, and vehicles are not allowed inside! 3. Terns are very sensitive to loud noises; please keep voices low when birdwatching in An Dong Tunnel to avoid disturbing them.
