Walthamstow Wetlands is a large nature reserve located in Walthamstow, London. Covering 211 hectares, it is one of the largest urban wetlands in Europe. The area consists of a series of reservoirs, ponds, and marshes, providing a habitat for various wildlife, including birds, insects, and plants. The wetlands are also a popular recreational spot for locals and visitors. There are walking and cycling paths, as well as viewing platforms for birdwatching. The site aims to balance nature conservation with public access, making it an important green space in the city.