Wanglongpi situated near Hushan elementary, at Yuanshan Township, in Yilan County, Taiwan. ‘Wanglong’ means that people pray for being rainy and cloudy to bring benefit to the human. Because of flash flood hundred years ago, the natural lake was formed after the erosion of mudslide had happened. In addition, there is a pavillon on an artificial island that the tourists can reach from the lakeside via the nine-turn bridge; besides, the tourists also can ride a bike and drink coffee by the lakeside. Near has the lakeside trail, multiple hiking trails and the platform for sightseeing. Wanglongpi is a sightseeing spot which not only can make people feel at ease, but people can go hiking and enjoy the green shower. Moreover, there're ducks, geese, mandarin ducks swimming in the lake that your children can buy the feeds to feed them.