Trwyn Du Lighthouse

Trwyn Du Lighthouse (also known as Penmon Point) is a classic Anglesey rock-and-reef mark where strong tidal flow pushes bait over rough ground and can fish very well when conditions line up.

• Best thought of as a species-hunting rock mark rather than an easy “chuck and wait” venue.
• The ground is a mix of kelp, broken rock, boulders and reef, so tackle and technique matter.
• It’s a scenic, exposed headland: plan around tide strength, swell and safe footing.
• Expect sessions to be tide-driven, with bites often coming in short, concentrated spells.

The lighthouse sits on the east side of Anglesey at Penmon Point, facing the Menai Strait/Channel approaches and the tidal race around Puffin Island.

• Access is typically via Penmon/Penmon Point and the coastal track to the headland.
• You’ll generally fish from rock ledges and low platforms around the point, picking your way between boulders and kelp.
• The most productive water is usually where you can cast into or alongside the main run of tide and any visible seams/boils.
• Allow extra time for getting in and out: the mark can be awkward in the dark and after rain.

This is a mixed-ground Anglesey mark where you’re targeting fish that patrol kelp edges, gullies and tide lines.

• Pollack: a headline species here, especially near kelp fringes and drop-offs.
• Wrasse (ballan/corkwing): common over rough ground in the warmer months.
• Codling (seasonal): possible when cooler water and colour coincide.
• Coalfish: can show in numbers when small baitfish are present.
• Mackerel: often around in summer/autumn; look for birds and surface activity.
• Flatfish (dab/flounder) are less of a feature on the roughest ground but can appear on any adjacent cleaner patches if you find them.

You’ll do best by matching your approach to the ground: fish tight to structure for wrasse/pollack, and search the seams for anything moving through on the tide.

• Spinning / lure fishing:
  • Work soft plastics, metal jigs, and shallow-to-mid divers along kelp edges and into deeper channels for pollack/coalfish.
  • Fish slightly uptide and let the lure swing and sink, then retrieve with pauses—pollack often hit on the drop.
• Float fishing:
  • A sliding float with ragworm, maddies, strips of mackerel or crab can be deadly over the kelp for wrasse and pollack.
  • Keep enough lead to hold down in the flow, but not so much that you constantly snag.
• Bottom fishing / ledgering:
  • Use pennel or single strong hooks with crab, worm cocktails, or fish baits where you can find a slightly cleaner run.
  • Consider rotten-bottom rigs, weak links, or breakout leads used carefully—this is snaggy terrain.
• General tackle guidance:
  • Abrasion resistance is vital: heavier leaders and tough mono/fluoro help around rock and kelp.
  • Carry spare rigs and leads; losses are part of fishing rough Anglesey ground.

The point is heavily tide-influenced, and the strongest flows can make holding bottom difficult—but those same flows feed the fish.

• Tide state:
  • Productive windows are often around the building tide and early ebb, when the flow creates defined seams without being totally unmanageable.
  • On very large tides, consider fishing the slacker edges of the run rather than the main race.
• Sea state:
  • A bit of swell and colour can improve catches for some species, but too much swell makes the ledges unsafe and can make fishing impossible.
  • Calm, clear conditions can still fish well for pollack/wrasse—just scale down presentation and fish structure precisely.
• Wind:
  • Onshore wind can push swell onto the rocks; offshore can make it look deceptively calm while the tide still rips.
• Water clarity:
  • Clear water: favour lures, float-fished baits and natural presentations.
  • Coloured water: scented baits and bigger profiles can help fish find you.

This is not a beginner-friendly mark: it’s exposed, rough underfoot and can be dangerous in swell or when the tide cuts off escape routes.

• Footing hazards:
  • Slippery weeded rock, rounded boulders, and uneven ledges are common—take your time moving.
• Swell and wash:
  • Even small sets can surge unexpectedly; avoid low rocks if there’s any swell and never turn your back on the sea.
• Tide cut-off risk:
  • Some positions can become awkward or isolated as water rises—have a clear exit plan before you start.
• Night fishing:
  • Only for confident anglers with strong headlamps; the terrain is easy to misjudge after dark.
• Recommended kit:
  • Studded boots/cleats, life jacket/floatation, a wading staff for balance, and a means of calling for help.
• Accessibility:
  • Not suitable for wheelchairs or limited mobility; expect scrambling and carrying gear over rough ground.

Facilities at the point itself are limited, so it pays to arrive prepared.

• Parking is generally in the wider Penmon/Penmon Point area, then you’ll walk to the rocks.
• Bring your own essentials: water, food, spare clothing, first aid, and a dry bag for electronics.
• Mobile signal can be variable around rocky headlands—don’t rely on it as your only safety plan.

This mark rewards anglers who read the water and fish with the tide rather than against it.

• Start by watching the water for tide lines, eddies and baitfish; fish often sit where flow meets shelter.
• For pollack, focus on the kelp edge and the first drop-off—don’t automatically cast as far as possible.
• If you’re snagging constantly, adjust rather than persist:
  • Shorten the cast, lighten the lead, fish a float, or switch to lures that ride higher.
• A landing net or drop net can be useful depending on where you set up; some ledges are awkward for lifting fish.
• Keep an eye on boat traffic and wash—this area can see marine activity, and wash can surge onto the rocks.

There is no widely publicised blanket ban specific to “Trwyn Du Lighthouse” itself, but local restrictions can change and some land/access areas may be managed.

• Check for on-site signage regarding access, parking, private land, or any seasonal restrictions.
• If you plan to collect bait (e.g., crab or shellfish), check current local bylaws and conservation rules before taking anything.
• Follow best practice on rough-ground marks:
  • Respect other anglers and any local residents/landowners.
  • Take litter and discarded line home; avoid leaving bait scraps where people walk.
• If in doubt, verify rules with local tackle shops, the local authority/harbour notices, or posted information at access points.