Estuary Fish Online source a wide selection of shellfish including prawns, shrimps, crayfish, king prawns, oysters, mussels, whelks, winkles, lobster, crab. Estuary Fish Online have been supplying shellfish for more than 60 years, and although our grandfather did not have the selection that we know today whelks are part of our history. Cockles, eels, shrimps, whelks and winkles, and these were served from outside the wooden looped shutters on a trestle table, all piled up and sold in pints and half pints fresh from the sea. Today we continue to source whelks from the UK coastline and supply online for home delivery.