Fish north side of the harbour straight down from the last house casting towards the south end of the island, best on the ebb 2 3/4 to 3 hours to low first 1 1/2 of the flood on a medium to big tide, its the same all the way up to the castle fishing into heavy kelp.
Seahouses behind the south pier the skeers at beadell and newton are more or less the same
Its best when sea is flat and the water crystal clear the best bait is crab