Heath Lake is a 6-hectare (15-acre) biological Site of Special Scientific Interest (SSSI) in Berkshire. The SSSI is part of the 22.3-hectare (55-acre) Heathlake Local Nature Reserve, which is owned and managed by Wokingham District Council.Most of this 2.8-hectare (7-acre) lake is less than 1-metre (3-foot).