Weymouth, Dorset to the main town centre. There are 11 Sites of Special Scientific Interest in the borough, which cover an area of , and there are 37 other Nature Conservation Designations. Situated approximately halfway along the Jurassic Coast, Weymouth is a gateway town to the UNESCO World Heritage Site, which includes of the Dorset and east Devon coast that is important for its geology and landforms. The South West Coast Path has two routes around Weymouth and Portland—one around its coast, and one along the South Dorset Downs, which reduces the path's length by . The path is the United Kingdom's
World Heritage Site its "outstanding universal value", is also evaluated by the advisory bodies before being sent to the Committee. Such proposals can be rejected by either the advisory bodies or the Committee if they judge it to be a significant change instead of a minor one. Proposals to change the site's official name is sent directly to the Committee. A site may be added to the List of World Heritage in Danger if there are conditions that threaten the characteristics for which the landmark or area was inscribed on the World Heritage List. Such problems may involve armed conflict and war, natural