Fished the rocks around coldingham bay a few times,(always stayed at scoutscroft holiday park), caught plenty pollack and coalies in the 1-2 pound range, also had some nice plaice, bait was always frozen stuff ie r/down, mack,squid,s/eel, only used the tackle shop in berwick once total rip off and crap bait, so always took bait with me, hope this helps.
steve