try fishing the sandbank just off the old beaumaris lifeboat slip. It's about 2 miles past beaumaris in line from where the red bouy is. Literally get it before it dries out. If you dry, get out and push, if you beach, who cares, not long before you float again!
Catch the tide right as kwacker says, during the hour before the hour before and the hour after the hour after. ie 2 hours either side slack low, use live sand eel, make sure theyre live, and you'll be rocking!
mackerel fishing gets boring. If theyre in season, theyre in, if theyre not, theyre not. No skill or knowledge required.