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South Stack

Rock mark · Salt water · in Anglesey

Quartzite cliffs of up to a hundred and twenty metres on the western tip of Holy Island, with a lighthouse islet, deep water immediately below and a heavily folded, broken rock coast either side.

Safety: cliffs and rock platforms — can cause serious injury or death. 3 more points apply here.

What each one does, and what reduces it ↓

FishingHQ describes what this place is, not whether you may fish it. Access, permits and who to ask.

What you can catch here

Documented at this place, grouped by how you would be fishing, with how strongly the sources support each one. This is what has been written down, not a forecast, and being listed is never permission to fish.

What these strengths mean
Regular local target
Fishing sources describe this as a normal local target here, not merely as caught.
Seasonal
Well supported, and concentrated in part of the year rather than spread through it.
How breadth is counted
A fish documented at six marks is shown as six marks: breadth never raises the strength on its own. A fishery account describes the fishing; a recorded catch reports one specific catch. How evidence is weighed.

Also associated with this ground

Recorded as present here without a documented method or strength behind them.

Conger eel · European sea bass

Fish documented nearby, not here

Nothing below has been documented at South Stack itself. Each one has been documented at a named place on the same ground, and the places are listed with it. Treat this as what the water around here holds rather than as a catch list for this mark.

Widely documented on this ground

Documented at three or more neighbouring places, fished a way this place is also fished. That is a pattern about the ground rather than about any one mark, and it is the closest this site comes to saying you will probably meet a fish somewhere nothing has been written about.

From the shore

  • Small-spotted catshark — documented at Penmon Point; Moelfre rocks; Beaumaris Pier (+1 more)
  • Whiting — documented at Moelfre rocks; Beaumaris Pier; Cymyran and Rhosneigr

Also documented at neighbouring places

One or two accounts each, on the ground around here. Enough to know the fish is caught in these waters; not enough to say anything about this place.

From the shore

How people fish it

Practised here: Sea fishing, Spearfishing.

Methods the sources name for this ground. Each one is explained in full on its own page.

  • Float fishing

    Suspending a bait at a controlled depth beneath a buoyant indicator — the most visual, most controllable and most widely applicable method in angling.

  • Spinning

    Casting an artificial lure and retrieving it so that it moves like something alive — the most direct form of lure fishing.

The ground and the water

The ground
Quartzite cliffs of up to a hundred and twenty metres on the western tip of Holy Island, with a lighthouse islet, deep water immediately below and a heavily folded, broken rock coast either side.
Exposure
Fully open west to the Irish Sea. Atlantic-generated swell wraps round Anglesey and arrives here with nothing in front of it.
Depth
Very deep close in beneath the cliffs.
Tide and flow
Strong streams run past the stack and set up broken water on the ebb against a swell.

Getting there

What public sources describe, last checked 2026-08-26. Car parks fill, services change and a path existing is not a path anybody may use — none of this is a guarantee of availability and none of it is permission to be anywhere.

Getting to it
A managed nature reserve on the western cliffs of Holy Island, with three car parks serving different parts of it and a visitor centre. The angling is off the rock below and around the reserve; arriving is the reserve's arrangement and where anybody may fish is not.
The walk in
A level accessible path runs from the Ellin's Tower car park to the viewpoint and takes a pushchair or a wheelchair. The alternative route down to Ellin's Tower itself has twenty-five uneven steps. The coastal trail beyond is described by the reserve as more rugged, uneven and narrow.
Mobility
The level path from Ellin's Tower car park to the viewpoint is the accessible route and the RSPB says so plainly; the twenty-five uneven steps are the alternative rather than the way. Blue badge spaces are provided at two car parks, and an accessible toilet with baby changing is at the visitor centre. Assistance dogs are welcome throughout.

Parking

  • Ellin's Tower car park

    Public car park · Charged

    Tarmac, with seven blue badge spaces and no height restriction. Unlit, and no overnight parking. Charges apply all year round.

  • South Stack visitor centre car park

    Public car park · Charged

    Tarmac, with blue badge spaces, beside the visitor centre and its toilets. Charges apply all year round.

  • The compacted-stone car park

    Public car park · Charged

    A third area surfaced in crushed compacted stone rather than tarmac, which matters for a low car or a wheelchair. Charges apply all year round.

Where this access information comes from
  • South Stack Cliffs nature reserve — RSPB visitor information — RSPB (Conservation authority)Relied on for: The reserve's own visitor information: three car parks with their surfaces and blue badge provision, year-round charging, no overnight parking, toilets at the visitor centre only, a level accessible path to the viewpoint, twenty-five uneven steps on the alternative, a rugged coastal trail, and seasonal drone and year-round barbecue restrictions.States this directlyPassage read and verified

What is there

  • Public toilets

    At the visitor centre only, open daily from ten until five, including an accessible toilet with baby changing. There are no toilets at Ellin's Tower.

  • Food or shelter

    A cafe at the visitor centre. Dogs are allowed on the reserve but not inside it.

Through the year

Pollack, wrasse and mackerel through the warmer months; bass from late spring to autumn.

The months the sources attach to each species here. Where a species carries no season it is listed underneath rather than assumed to run through the year.

The months in which each species is recorded as caught at this location.
SpeciesJFMAMJJASOND
Atlantic mackerel — seasonal, recorded in June, July, August, September.
Ballan wrasse — seasonal, recorded in May, June, July, August, September, October.

Recorded here with no season stated: Pollack.

Safety

Cliffs and rock platforms — Can cause serious injury or death

Anglers are swept from rock platforms by individual large sets rather than by the average sea, which means the conditions that kill people frequently look survivable for the twenty minutes before they arrive. Wet rock, weed and a swell running onto a sloping platform remove any chance of recovery.

What reduces it: Watch the water for a full set cycle before committing to a position, know the escape route and how long it takes, wear a flotation aid rather than carry one, never fish a platform alone, and treat a rising swell forecast as a reason not to go rather than a reason to be careful.

Cliffs and rock platforms — Can cause serious injury or death

Access to the water here is down long, steep, exposed cliff paths and scrambles above a hundred metres of drop, in a place where the weather changes fast and the return climb is harder than the descent.

What reduces it: Treat the descent as mountaineering rather than as a walk, do not commit to a route you have not seen from below, and turn back when conditions or light change rather than when the climb becomes difficult.

Cold water shock — Can cause serious injury or death

UK coastal and inland water is cold enough for most of the year to trigger the involuntary gasp and the loss of swimming ability that decides most immersion deaths, and it does so within the first minute, long before hypothermia is relevant.

What reduces it: Wear a buoyancy aid rather than carry one, carry a means of calling for help on the person rather than in a bag, and plan on the assumption that an unplanned entry into the water is survivable only if somebody knows immediately.

Tides and being cut off — Can cause serious injury or death

Tidal streams through the Menai Strait and around Anglesey's headlands reach speeds a kayak or small boat cannot make way against, with standing waves and overfalls forming at the constrictions. Slack water does not coincide with high or low tide and the window is short. Extensive intertidal flats along the strait flood rapidly and can cut off a person from behind.

What reduces it: Plan against tidal STREAM information rather than tide tables alone. Treat the Swellies as a slack-water-only proposition in any small craft. Know the exit before committing to a mark on the flats. Carry a means of calling for help and tell somebody the plan.

Worse when:

  • Spring tides, when the streams are fastest and the slack window is shortest
  • Wind against tide, which builds a short steep sea in minutes
  • Fog or failing light, when the visual cues to what the water is doing are lost

Rules and access

FishingHQ does not know the current access position here. Shore angling in Wales is not rod-licensed, but access rights, landowner permission, local authority and harbour byelaws, national and inshore fisheries measures, and site designations all apply and all change. Check the current position with Natural Resources Wales, the harbour or local authority, and the landowner before going.

Particular to this water: This ground carries conservation designations that constrain access, vehicles, bait collection and disturbance independently of any fishing rule.

Who holds the answer:

  • Natural Resources Wales, which administers marine and fisheries regulation in Welsh waters.
  • The local authority and, where one exists, the harbour authority, for access, byelaws and shellfish classification.
  • The national fisheries authority for Wales, for sea fisheries measures, licensing and enforcement.
  • The inshore fisheries and conservation body for the area, for local byelaws, closed areas and gear restrictions.
  • The food safety authority and the local authority, for shellfish bed classification and closures, which change continually.
  • The harbour authorities and the port authority for the strait, for navigation, launching and access.
  • The maritime and coastguard agency and the lifeboat service, for safety information and rescue in an area with genuine tidal hazard.
  • The landowner, club or fishery, for permission to fish any freshwater on the island.
  • The reserve managers, where seabird nesting restrictions affect access seasonally.

Nearby fishing

Other publicly documented places within about 40 km, by distance. Positions are approximate public geography and are never exact marks.

South StackHolyhead breakwaterTrearddur BayCymyran and RhosneigrLlyn AlawCemaes BayLlanddwyn IslandPoint LynasMoelfre rocks
South Stack and the publicly documented places around it. Approximate positions, not marks. On a narrow screen the plot is wider than the screen and scrolls sideways inside its frame. Positions are approximate by design — they are capped at about a hundred metres and describe where a named public place is, not where fish are and not a mark. Everything plotted here is also listed below.

Sources for this place

  • JNCC species and habitat conservation advice — Joint Nature Conservation Committee (Conservation authority)Relied on for: Description, designation and habitat characterisation of the named coastal and marine features of the United Kingdom, and the species characteristically associated with them.States this directlyCitation checked — the work exists and is described correctly
  • Cefas science, advice and data on marine and freshwater environments — Centre for Environment, Fisheries and Aquaculture Science (Government fisheries body)Relied on for: Marine environmental science for UK shelf seas: sediment characterisation, estuarine process, shellfish bed distribution, tidal range and the monitoring that describes them.States this directlyCitation checked — the work exists and is described correctly
  • Sea Angler — Bauer Media (Specialist angling publication)Relied on for: Long-running published description of British sea angling practice by region, ground type and named mark.FishingHQ's interpretation of what it saysCitation checked — the work exists and is described correctly
  • General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated public descriptions of which places are conventionally fished and how, recorded as practitioner consensus rather than as scholarship, and not relied on for access, permission or any current rule.Background and mechanism onlyCitation checked — the work exists and is described correctly
  • Rock fishing safety and the declared lifejacket areas of New South Wales — NSW Department of Primary Industries and Surf Life Saving NSW (Water-safety or diver-training authority)Relied on for: Rock-platform fishing hazards, the mechanism by which anglers are swept from platforms by sets rather than by average conditions, and the measures that address it.States this directlyCitation checked — the work exists and is described correctly
  • RNLI water safety guidance: cold water shock and Float to Live — Royal National Lifeboat Institution (Water-safety or diver-training authority)Relied on for: Cold water shock, immersion response and the advice to carry a means of calling for help on the person.States this directlyPassage read and verified
  • South Stack Cliffs nature reserve — RSPB visitor information — RSPB (Conservation authority)Relied on for: The conservation body that manages the reserve, describing its own parking, paths and facilities.States this directlyPassage read and verified
  • Sea fishing in north Wales — the mark guide — Turner's Tackle (Credible secondary source)Relied on for: The mark-by-mark north Wales index: which species each named mark on Anglesey, the Llŷn and the mainland coast produces, with the ground, the bait, the state of tide and the method.States this directlyPassage read and verified
  • British Sea Fishing: Welsh shore marks — British Sea Fishing (Credible secondary source)Relied on for: The mark-by-mark Welsh shore guide: species, bait, season and ground at each named mark.States this directlyPassage read and verified

How FishingHQ labels evidence is explained in the evidence policy. Last reviewed 2026-08-16.

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