Get yourself onto Whitby\'s east pier (one under the abbey) 2 hours before high water go towards the end of the hard standing (last big white capston), chuck about 50-70 yards, further if you can manage it, straight out to sea. There are some good fish caught from there even in daylight if there is a bit of movement in the water.
Best i\'ve seen was 3 years ago, 21lb pure fresh run cod, there are always one or two decent fish get caught every year.