Estuaries change quickly with the tide. Flooding water can push bass and flounder onto feeding ground; avoid soft mud and cut-off routes.
Platichthys flesus
Identification, season, habitat, bait, rigs and TideDeck shore marks relevant to Flounder.
Variable brown flatfish with a roughened lateral line; unlike plaice it normally lacks vivid orange spots.
Estuaries, muddy creeks, harbours and sandy beaches.
Widespread around UK coasts and able to move well into brackish water.
Broad UK context, not confirmation of presence at every compatible mark.
Can feed in daylight or darkness and may move very close to shore.
Light-to-medium bottom tackle and simple running or multi-hook rigs are commonly suitable.
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Flounder is a UK shore-angling target associated with estuary, sand, harbour. Estuaries, creeks and muddy ground are prime habitat; fish can feed surprisingly close to shore.
Typical UK shore season: All year; strongest autumn–winter. Timing varies around the UK with water temperature, region and weather, so treat the season as a planning range rather than a promise.
Useful ground types include estuary, sand, harbour. Fish position within a mark can change with tide stage, daylight, swell and food availability.
Common baits: ragworm, lugworm, mackerel strip.
Common rigs or methods: running ledger, two-hook flapper.
Use the linked TideDeck bait, rig, month and location pages to build a session plan. Check current local rules and recent reports before travelling, especially where species availability or conservation measures can change.
Broad UK shore-fishing guidance; regional timing and water temperature can shift availability.
These are ground-type principles, not mark-specific claims. Use the live TideDeck page for the mark you plan to fish.
Estuaries change quickly with the tide. Flooding water can push bass and flounder onto feeding ground; avoid soft mud and cut-off routes.
On open sand, use low water to identify gullies and banks. The flooding tide often brings fish into those features and closer to the beach.
Harbours and piers can offer depth through more of the tide. Moving water around structures is often more important than simply aiming for high water.
Ground-type matches for planning and research, not confirmed catches or a claim that the species will be present.