Gut Ottenstein is a vast 3,200-hectare estate in Austria founded in 1670 by the Windhag Foundation, dedicated to philanthropic causes and sustainable resource management. The property encompasses forestry operations, pioneering organic fish farming producing renowned Waldviertel carp, organic agriculture, and sustainable hunting practices. Visitors enjoy diverse activities including fishing licenses for reservoirs and fly-fishing, boat mooring, pond hiking trails, event venue rentals, and lakeside lodging at the Seehäuser Dobra. The estate balances ecological stewardship with recreational opportunities across its extensive natural landscape.