Lincolnshire's 'Outmarsh' stretches from Grimsby to Gibraltar Point just inland from the coast. Its culture and history is closely associated with traditional farming methods. It involved the use of livestock to graze fertile, moisture retaining, ancient pastures. Species rich hay meadows were cut for forage later in the year. Around the villages, land was cultivated, producing ridge and furrow features.

The Marshes have a rich, cultural history. Evidence of occupation, and some cultivation, dates back to the Neolithic period, 4,000 - 2350 BC.

Species for which the marshes are particularly important include waders and other bird species. Ditches can have a high value for wildlife. Hedges form a distinct part of the landscape. The area is a particular stronghold for water voles. There are a number of important nature reserves in the area. Coastal and floodplain grazing marshes are listed as a habitat of principal importance for the conservation of biological diversity in England.

The Coastal Grazing Marshes are, first and foremost, a working landscape; important for farmers and farming businesses. Agriculture has seen a lot of changes over the last 50 years.

The Lincolnshire coast is a renowned tourist destination, particularly the resorts of Skegness and Cleethorpes during the summer months. These days, the undeveloped coast and the grazing marshes behind have been largely ignored as holiday destinations.