Cleddau Estuary

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Cleddau Estuary is an estuary in the bay of Milford Haven, in the county of Pembrokeshire on the coast of south-west Wales in the United Kingdom. The estuary is used regularly for incoming oil cargo into the refinery and was the subject of a disaster in 1996 when the Sea Empress oil tanker ran aground in the bay, spilling over 73,000 tonnes of crude oil.