I think it was commented before that Conwy side fishes best on the flood and Deganwy side on the ebb, I fished the twin sisters ( I think that is the right name, named after two upright pillars of rock on the foreshore .) mark on the Great Orme road in Summer approached from the West Shore side via a steep path opposite a wall ( tight to get parked) just before the millionaires row houses start, but I think its more a bass mark than cod but I don't really know much more than that really. Good luck!
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we call it fishing not catching!