Taroko Swallow Grotto Trail

Yanzikou is a section of cliffs in the Taroko Gorge, with towering canyons, thick and majestic cliffs, and tortuous caves. Standing on the edge of the highway guardrail, the opposite mountain wall is close at hand. Due to the long-term erosion of the limestone by the stream, the softer rock layers gradually form caves, and swallows build their nests in these natural caves. In the early years, swifts and foreign swallows often foraged in groups in the air, forming a spectacle of "Hundred Swallows Singing Valley", thus winning the reputation of Yanzikou. It is a pity that due to too many tourists, the swallows have now been scared away by the noise of cars and people. Only occasionally there are still a few shuttles nearby, leaving only the wonders in the cave on the rock wall, which only adds to the regret.