bridge over the liwu river gorge surrounded by green mountain of taroko gorge in taroko national park, taiwan

travel rock scenic scenery mountain hill valley tree jungle wood forest green gorge taiwan spring hualien xiulin park taroko taichung nantou nature asia asian landscape chinese taipei path route walk trail trekking hiking swallow grotto yanzikou turquoise blue liwu river creek stream cliff stone marble erosion steep bridge tourist tourists crossing narrow surrounded national