To the northwest end of the Sluice (nprn 34359) is a slipway projecting into Tenby Harbour and known as the Mayor's Slip; it has been almost entirely rebuilt in concrete in the twentieth century.
Sources include CADW listed building description; Margaret Davies, The Story of Tenby, 1979.
B.A.Malaws, RCAHMW, 12 December 2012.