Staithes (that area) has some of the best cod marks I know, get yourself out and about at low water in daylight(waders advisable) and you will be suprised at the amount of decent gullies there are in the area to the left of Cowbar jetty (one about 50 yards just over the access steps to the jetty), any bait will do, but best results from large crab and mussel baits.
If you walk round the point to the right hand side of Staithes (towards Port Mulgrave) you will see some of the best gullies I know (good in daylight also).
But be carefull especially to the right you can get cut off, also same prob if you go to far left.
The end of the jetty(Cowbar) can be good on the first of the ebb, any bait will do on there (plenty of lobsters get brought in tangled up in your line). Be carefull if there is a decent swell on :exclam: , it can come over the top even with the new defences in place,
You will experience some good sport there.
Middle of January, expect to catch a monster, lots of people have.