Read the beach at low water
Walk the strand on a big low tide before you ever fish it. What you are looking for is the gutter: the trough that runs parallel to the shore between the dry sand and the outer bar. On the Wicklow and Dublin Bay beaches that trough is often close in, sometimes no more than a rod length or two beyond where the surf breaks.
Mark the gutter against something on the land, a gap in the dunes or a house on the road, so you can find it again in the dark on a full tide. Fish feed along it as the water covers, which is why a short cast into the gutter regularly beats a long cast into the flat, empty water beyond the bar.
Tide, lead and the run of water
Beaches want water over the ground before they fish. Arriving at dead low usually buys you an hour of casting at sand. The flood filling the gutter is the window on most of these marks, and the first of the ebb can fire again as the water drains back off the bar.
The longshore run on shingle is stronger than it looks. Plain bomb leads roll, drag and end up in the next angler, so grip leads are the default here: go heavier before you go shorter when the lead will not hold. A rig that keeps the bait pinned in the gutter is worth more than another ten metres of distance.
What comes in on the sand
Clean sand is flatfish and bass ground through the warmer half of the year, and whiting, dab and dogfish ground through the dark. Coloured water after an onshore blow brings fish in close and makes bait fishing genuinely productive; flat, clear, sunlit water pushes them out and rewards lures or a much longer cast.
Each mark below carries its own access, parking, species and safety notes, plus a live score for today. Open the ones within reach and compare the session fit before you load the car.