The Nature Conservation Center Ökowerk Berlin at Teufelssee is a non-governmental educational and conference center in the oldest preserved waterworks in Berlin. The diverse grounds host a variety of animal and plant species. Different habitats such as gardens, hedges, and ponds invite nature observation. The main tasks of the association include environmental education and practical nature conservation as well as the maintenance of the listed industrial cultural site.

Weekend events related to nature and guided tours of the historic waterworks. One-week holiday programs for children aged 7 - 12 during all Berlin school holidays except for the Christmas holidays.