take crab, rag and a bit of lug, by then you'll be able to catch some fresh mackerel,
if you wanna stay in blyth
start at pier
you could start couple hrs before dusk fishin with bait and spinnin while waiting for bites on ur bait rod, plaice, codlin, coalies, flounder, dab, whiting, eels even chance of a doggy
could check out gullies etc on beach and once you get bored on pier move along beach trying various features uv found at low water etc
then back to pier for dawn for more mackerel and more bait out in the light for the plaice
good luck