Cobham Woods is a 242.7 hectares (600 acres) biological Site of Special Scientific Interest on the western outskirts of Rochester in Kent. It is in the Kent Downs Area of Outstanding Natural Beauty and part of it is managed by the National Trust.The managed ancient woodland is largely sweet chestnut coppice with some coniferous plantations, while the parkland is mature woodland, with some clearings, of oak, sweet chestnut, beech, hornbeam, and other species.