The lake is nestled at the foot of the 352 metre Dent Fell - the first fell to be encountered by hikers following Wainwright’s Coast to Coast Walk.
Longlands supports an abundance of wildlife within a variety of habitats, which include: broadleaf woodland, unimproved grassland and aquatic vegetation. The lake is important for its bird population and breeding species include mute swan, coot, moorhen, goosander, tufted duck and mallard. The lake itself is managed by Wath Brow and Ennerdale Angling Association.
There is a 1.2 km (0.75 miles) circular walk around the lake providing safe and enjoyable access all year round for walkers, wheelchair users and those with pushchairs and young children. The surface material is finely crushed local quarry stone which provides a hardwearing, compact surface.
There is a parking area near the lake, picnic areas, a path which goes round the lake, and a separate path which goes to the remains of the old forge, then on to Dent Fell.