The parish is a long, narrow, strip bounded on the north-east by the River Witham, and on the opposite edge by the 10 Foot Drain (between Sutterton Drove and Kirton Drove).
The landscape is described in Natural England's National landscape character survey as "a distinctive, historic and human-influenced wetland landscape lying to the west of the Wash estuary, which formerly constituted the largest wetland area in England.