Pembrey 's harbour was prone to silting .
Pembrey 's harbour was abandoned in favour of Pembrey New Harbour - soon renamed Burry Port Harbour , just a mile further upstream on the Burry Estuary .
Pembrey 's harbour was prone to silting and was abandoned in favour of Pembrey New Harbour - soon renamed Burry Port Harbour , just a mile further upstream on the Burry Estuary .