The area within an imaginary line commencing at a point (50°15′50.51837″N, 005°17′31.53797″W) then in a straight line in a south westerly direction to a point at the northern end of the pier (50°15′49.09131″N, 005°17′34.40843″W) then following the seaward side of the pier along the level of high water and then in a southerly direction to a point (50°15′40.92978″N, 005°17′30.75737″W), then following the level of high water around the two tidal basins and turning basin (along the north eastern side) back to the point of commencement (50°15′50.51837″N, 005°17′31.53797″W) and the harbour premises, as shown outlined red on the Portreath Harbour Limits Plan.