Find this excellent fishmonger in what looks like a timbered shack hard against the quay, and close to the fishing boats.
On closer examination all is carefully refrigerated and kept gleamingly-fresh. If you're a seafood lover it's worth a special trip, as they buy from the local boats each morning and also have a selection of items such as king prawns from further afield.
Open: Mon-Sat 7.30-16.30, Sun 10.30-16.00
Nearest Station: Littlehampton