Aerial photo taken on Feb. 1, 2018 shows a frog farm in the river junction area in Jiande City, east China's Zhejiang Province. There are more than 20 villages scattering in the junction area of the Xin'an River, Lanjiang River and Fuchun River in Jiande. Local government has boosted ecological tourism and environment protection projects in the area, which combines sports, leisure and delicacy. (Xinhua/Weng Xinyang)