One Line Sky — One Line Sky is located on the coast of Dongyin Island, a narrow trench formed by the combined action of sea erosion and vertical joints in the strata.

One Line Sky. One Line Sky is located on the coast of Dongyin Island, a narrow trench formed by the combined action of sea erosion and vertical joints in the strata. One Line Sky is located on the coast of Dongyin Island, a narrow trench formed by the combined action of sea erosion and vertical joints in the strata. The rock walls, tens of meters high, stand opposite each other as if split by a sharp blade, with only a thin sliver of sky light filtering down from above, hence the name "One Line Sky." Walking between the rock walls, one can feel the oppressive presence of the steep cliffs on both sides and the power of nature, making it one of Dongyin's most awe-inspiring and representative geological landscapes. Address: 連江縣東引鄉連江縣東引鄉（位於東湧燈塔步道群內，依路口指標可輕鬆抵達） Hours: 00:00–23:59 Matsu