Chesil & The Fleet Site of Special Scientific Interest Adventures

Chesil & The Fleet Site of Special Scientific Interest (SSSI) is a distinctive protected area located on the Dorset coast in southern England. The site encompasses Chesil Beach, an 18-mile long shingle barrier beach that separates the Fleet Lagoon from the English Channel. The Fleet Lagoon is Britain’s largest tidal lagoon, characterized by very shallow, brackish waters that create an essential habitat for many species of flora and fauna, especially wildfowl and wading birds. The site supports internationally important bird populations including avocets, shelduck, and oystercatchers, as well as rare plant communities and invertebrates adapted to saline conditions. The shingle beach itself is a geomorphological marvel, composed of pebbles sorted by size along its length, forming a natural barrier against the sea. Historically, Chesil Beach has influenced local communities through fishing and coastal trade, while today it attracts naturalists, photographers, and walkers keen to experience its rugged beauty. Recreationally, Chesil & The Fleet is popular for birdwatching, walking, sea kayaking in the lagoon, and fishing. The area is also significant for its role in coastal defense and scientific study of coastal processes. Visitors often enjoy the scenic views from nearby hilltops and explore marked public footpaths that run along the beach and lagoon edges. The SSSI designation helps protect this fragile environment from development and preserves its diverse habitats for future generations.