Freiston Shore is a settlement in the Borough of Boston, in Lincolnshire, England. It is in the civil parish of Freiston, and approximately 4 miles east from Boston. In the late 18th and early 19th centuries, Freiston's sandy shore on The Wash was developed as a sea bathing resort. By the mid-19th century there were horse races and other attractions on the bea…Freiston Shore is a settlement in the Borough of Boston, in Lincolnshire, England. It is in the civil parish of Freiston, and approximately 4 miles east from Boston. In the late 18th and early 19th centuries, Freiston's sandy shore on The Wash was developed as a sea bathing resort. By the mid-19th century there were horse races and other attractions on the beach. However, the process of coastal accretion caused a salt marsh to develop, leaving hotels without customers. Since the mid-20th century, more marsh has been enclosed behind sea banks for use as arable land.