人工開鑿鬼斧神工之作 1968年，為戰略需要而開始的「北海計畫」在馬祖地區開鑿了不少「地下碼頭」，專供游擊戰艇停泊使用，如今在軍方釋出之後，成為馬祖地區特殊的「戰地景觀」，若無造訪北海坑道，便如同沒來過馬祖。 北海坑道位處鐵板海岸線，為一深入山腹，貫穿岩壁，呈「井」字形交錯的水道，水道高18公尺，寬10公尺，長640公尺，漲潮時水位達8公尺，退潮時為4公尺，步道全長700公尺，走完一圈約需30分鐘，但要配合潮汐的漲退，在退潮時才能進入。 這座可供百餘艘登陸小艇使用的地底坑道，當年被視為高難度的工程，共出動2個師、3個步兵營、1個工兵營以及1個傾卸車連混合編為3組，不分晝夜輪流施工，歷經820個工作天才完成。當時由於施工設備簡陋，除了用炸藥爆破外，全靠人力一鑿一斧挖掘花崗岩壁而成，不少官兵因而犧牲，工程之艱鉅、氣勢之壯闊，堪稱鬼斧神工之作。在過去戰雲密佈的年代，北海坑道曾經試圖要扮演著地下碼頭的運補功能；今日當人們走進深邃的坑道中，一幕幕雄偉壯闊的岩壁、幽暗浮動的倒影，都讓遊客不自覺地發出陣陣讚嘆。 備註：開放遊客參觀，但白天時需配合潮汐的漲退，才能進入參觀活動，請遊客注意潮差時間！ 夜間搖櫓 看藍眼淚的好去處 近年來，由於「藍眼淚」的發現，再加上據點坑道口少有光害，南竿藍眼淚的追淚熱點之一就在北海坑道，搭乘搖櫓船，慢慢搖入坑道內，尋覓散發細微光芒的光暈，是值得一探的體驗。
For military needs, in early days, plenty of underground piers were built in Matsu for guerilla boats to use. Today, since the army provides the access to the piers to the public, these facilities become unique war-time sites. Beihai Tunnel, situated by Tieban coasts, is a grid-structured waterway that goes deep into the mountains. Crossing through the rocks, it is 18 meters tall, 10 meters wide, and 640 meters long. In high tidal hours, the water goes up to 8 meters tall, and in low tidal hours, it dwindles to 4 meters low. The tourist path along the tunnel is 700 meters long. A round trip takes about 30 minutes.
A good place to watch the Blue Tears on a boat
In recent years, the tunnel has served as an ideal place for watching the Blue Tears, since the area has barely any light pollution at all. Take a rowboat into the tunnel and look for those subtle glows. What a worthy experience.
每日開放滿潮時坑道封閉
Open daily, but tunnel closed when the high tide
Beihai Tunnel (Nangan)
1
1、2、3、4、5、6、8、14、15
08:30-17:00
0836-22177
連江縣南竿鄉仁愛村95-1號
No.95-1, Renai village, Nangan township