The beautiful valley next to Badouzi Fishing Port in Keelung City is adjacent to the mountains and seas. This valley was formerly known as Da Hu Ding. For more than 50 years in the Republic of China, a person from Badouzi brought a group of National Taiwan University Students to play here. At that time, they could not go to the sea and could only play in the valley. They had a great time and forgot about their worries. Hence, they named this place "Worriless Valley." In around year 70 of the Taiwanese calendar, someone wrote "Wangyou Valley" meaning "Worriless Valley," which has been continued to be used up to today. Wangyou Valley is a V-shaped valley. You can relax on the green meadows, see fishing boats, and see the Keelung Island. Tourists then stroll on the ring ridges and valley trails. At night, the fishing spots on the sea and the lights of Jiufenshancheng form a beautiful scene of mountain and sea.