The Complete Guide to Sea Fishing in Wales

Why Wales for Sea Fishing?

While everyone's queuing for a charter boat in Cornwall or fighting for a spot on the Dorset shore, Wales has 1,680 miles of coastline with fish that haven't been pressured to death. Cardigan Bay is one of the most productive marine environments in the UK. The Pembrokeshire coast has bass that'd make a Devon angler weep. And you can often fish in complete solitude on beaches where you won't see another soul.

That's the thing about Wales — the fishing is brilliant, but nobody's shouting about it. Which, honestly, is exactly how we like it.

Shore Fishing

The Best Spots

Pembrokeshire is the headline act. The rocky coves and headlands around Freshwater West, Broad Haven, and the Castlemartin coast produce excellent bass, wrasse, and pollack. Fish the rock marks at dawn or dusk for the best results. Freshwater West in particular is one of the finest bass beaches in Wales — work the gutters and channels as the tide pushes in.

The Gower Peninsula offers superb shore fishing from Rhossili through to Mumbles. The Worm's Head causeway (accessible at low tide — check your times or you'll be stuck) is legendary for bass, conger, and ray. Langland Bay and Caswell are productive for flatfish and bass in the surf.

North Wales is underrated. The Menai Strait fishes brilliantly for bass, ray, and dogfish. Trefor Pier on the Llŷn Peninsula is a cracking spot for mackerel in summer, and the beaches around Harlech and Barmouth produce bass and flounder.

What You'll Catch (and When)

Bass: April to November, peaking June-September. Best on surf beaches after a blow.
Mackerel: June to October. Shoals move inshore from June — feathering from piers and rocks is easy and productive.
Flatfish (flounder, dab, plaice): Year-round, best October to March in estuaries.
Ray (thornback, small-eyed): March to October on sandy/mixed ground.
Wrasse (ballan): April to October on rocky marks. Incredible fun on light tackle.
Cod: November to February, mainly from North Wales marks and deeper rock gullies.

Boat Fishing

Charter Boats

This is where Wales really shines. Cardigan Bay boat fishing is exceptional — tope, huss, ray, and blue sharks all feature depending on season. Charter boats run from Saundersfoot, Tenby, New Quay, Aberystwyth, and Pwllheli.

For beginners: Most charter skippers welcome novices. A typical half-day trip (4-5 hours) costs £35-50 per person on a shared boat. Rods, tackle, and bait are usually provided. You'll target whatever's feeding — mackerel, pollack, dogfish, and ray are the usual suspects.

For the serious: Book a full-day charter targeting specific species. Tope fishing in Cardigan Bay (June-September) is world-class — fish to 50lb+ are caught regularly. Blue shark trips run from July to October, heading 15-20 miles offshore into proper Atlantic waters.

Kayak Fishing

Growing fast in Wales, and for good reason. Launching a kayak from a quiet beach gives you access to marks that shore anglers can't reach and boat anglers don't bother with. The Gower, Pembrokeshire, and Llŷn Peninsula all have excellent kayak fishing — bass, pollack, and wrasse from the rock edges, plus ray and tope further out.

Safety first: Sea kayak fishing requires proper kit — a stable fishing kayak, lifejacket, VHF radio, and knowledge of tides and weather. Don't push it. The Welsh coast can turn nasty fast.

River and Estuary Fishing

Sea Trout (Sewin)

This is Wales's secret weapon. The sea trout (called sewin locally) run on rivers like the Tywi, Teifi, and Dovey from May to September. Night fishing for sewin is one of the most exciting things you can do with a rod — these fish fight like demons in the dark and there's nothing else quite like it.

You'll need a rod licence from the Environment Agency and a permit for whichever river you're fishing. Local tackle shops are your best friend here — they'll tell you what's running and which beats are fishing well.

Estuaries

The Mawddach, Dyfi, and Teifi estuaries all produce excellent bass, flounder, and mullet. Estuary fishing is often overlooked but it's incredibly productive — especially for bass that push in with the tide to feed on the flats.

What Gear Do You Need?

Shore Fishing Kit

Rod: 12ft beachcaster for distance casting, or a 10ft bass rod for lighter work on rock marks
Reel: Fixed spool, loaded with 15-20lb mono or braid
Terminal tackle: Size 2-4/0 hooks, grip leads (for holding bottom in surf), running ledger rigs
Bait: Ragworm and lugworm are the go-to. Fresh mackerel strip for bass and ray. Peeler crab when you can get it — it's liquid gold

Budget tip: You don't need to spend £300 on a rod to catch fish. A decent combo (rod + reel) for £80-120 will handle anything you'll encounter from the Welsh shore. Spend the savings on good bait instead — that's what actually catches fish.

Boat Fishing Kit

Most charter boats provide everything. If you're bringing your own gear, a 20-30lb class boat rod with a multiplier reel is the workhorse setup. Lighter gear (12lb class) makes mackerel and pollack far more fun.

Licences and Regulations

Sea fishing: No licence needed for saltwater fishing in Wales
Rivers and estuaries above tidal limits: You need an EA rod licence (£33/year or £12 for a day)
Minimum sizes apply: Bass 42cm, mackerel 20cm — check current regulations as they change
Bass regulations: Currently 2 bass per day for recreational anglers. Catch and release is increasingly popular and strongly encouraged
Byelaws: Some areas have seasonal closures or gear restrictions. Check Natural Resources Wales before you go

Getting Started

If you've never sea fished before, the easiest entry point is a charter boat trip. Everything's provided, there's someone to help you, and you'll catch fish. Mackerel feathering in summer is practically guaranteed action.

For shore fishing, start on a beach rather than rocks. Surf fishing is more forgiving of mistakes, and beaches like Freshwater West and Newgale are big enough that you won't get in trouble with tides as easily.

The Welsh coastline is genuinely one of the best-kept fishing secrets in the UK. While the rest of Britain crowds into the usual spots, there are miles of empty beaches, untouched rock marks, and productive waters here that most anglers never discover. Their loss.