Junjianyan is a popular hiking trail located in the Datun Mountain System near Taipei. It's a great spot for a day trip or a school field trip because it's easy to access and has unique geological and botanical features. The trail offers different routes, including stone stairways and natural sandstone paths, that lead to the top where you can enjoy breathtaking views of rural and urban Taipei. There are also other paths that connect to Junjianyan, making it a versatile destination for outdoor enthusiasts. So grab your hiking boots and get ready to explore this hidden gem in Taipei!