Morston Marsh …Blakeney Harbour NT by Adam Swaine Via Flickr: A rich area for wildlife Morston lies within Blakeney National Nature Reserve, which also includes Blakeney Point and Stiffkey Marshes. With its big skies, haunting marshes, meandering tidal creeks and wide open sandy beaches, it is one of the largest areas of undeveloped coastal habitats of its type in Europe..