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Pembrokeshire

Blue Lagoon (Abereiddi)

6.6 · Rocks · Pembrokeshire

The Blue Lagoon at Abereiddi is a steep-sided flooded slate quarry opening into the sea, fished from rock ledges and the surrounding headland. Access is via the coastal path from Abereiddi car park, then a short but uneven descent; expect deep water close in, strong tide run around the entrance, and snaggy slate boulders. It’s a classic Pembrokeshire rock mark for float/ledger fishing and spinning, with best sport on a rising tide into high water and in calmer summer seas.

Should you fish Blue Lagoon (Abereiddi)?

56 Fair

Today · Best available

Best available: 21:00-00:00 around the rising tide

Most likely species: Bass and Conger Eel

Fair conditions. Best available around 21:00-00:00 around the rising tide, but no window reaches the strong threshold today. Good chance of Bass and Conger Eel.

W 4 mph Rain 24% High tide 00:25

Fishable, but pick your timing carefully.

Plan this mark

7-day fishing forecast for Blue Lagoon (Abereiddi) — 7-day forecast

Scores and best windows are weighted for .

Met Office Met Office · Open-Meteo

Where the data comes from. Weather and sea-state readings come from the Met Office and Open-Meteo forecast models, refreshed several times a day. High and low water are taken from tide-station predictions for this stretch of coast.

How the score works. Each window is scored 0–100 from the signals that most reliably move fish inshore: tide movement (a running tide carries food, so the last of the flood and first of the ebb are usually the prime spells), wind speed and direction (onshore wind stirs food into the surf — up to the point it makes fishing hard), sea state (a little wave and swell movement helps, heavy swell hurts), and weather — rain, temperature and light. Behind the headline number we score bite opportunity and comfort separately, and run a separate safety check on wind and swell. The size of the tide counts too: spring tides move more water than neaps, so the tidal range for this stretch of coast is weighed alongside the tide's direction, your target species and this mark — and unusually big springs strengthen the safety check, because the water rises faster and covers more ground.

Your target species counts. Pick a species below and the score also weights what we know about it — its season, preferred sea temperature, tide stage and sea state, and whether it feeds by day or night.

The rating is guidance, not a guarantee — conditions change fast on the coast, so always judge the sea in front of you before you fish.

Wednesday looks better than today. Unlock the week to see its score and exact window.

· windows & tide

Spring vs neap tides. Spring tides have a larger difference between high and low water, so more water moves on each tide — usually stronger flow that stirs up food and gets fish feeding. Neap tides have a smaller range and generally gentler movement. The range here is compared with what is normal for this stretch of coast, and the cycle swings between springs and neaps roughly every week, following the moon.

Big spring tides: the water rises faster and covers more ground than usual — double-check access routes and cut-off points before you fish.

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Blue Lagoon is a specialist Pembrokeshire rock mark where the decision is less about distance casting and more about whether the sea state lets you fish tight to deep rock, kelp edges and the quarry entrance safely. It can be very productive for pollack and wrasse, with bass possible in low light or a little surf, but swell, slippery slate, other water users and difficult landing positions can quickly make it the wrong choice.

  • Know when the quarry entrance is worth fishing — and when to walk away.
  • Target pollack on the flood without wasting casts into dead water.
  • Fish the kelp edges for wrasse without losing every rig.
  • Pick safer, landable ledges before committing to a session.
  • Have a nearby backup plan if swell or crowds shut the lagoon down.

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Jump to towns around this mark for more marks and guides.

Whitchurch (Pembrokeshire) 3.6 mi Solva 4.4 mi St Davids 4.5 mi Brawdy 5.2 mi Roch 8.2 mi

Explore nearby towns: Whitchurch (Pembrokeshire) · Solva · St Davids · Brawdy · Roch

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Forecast tuning currently supports Bass and Mackerel — more species are on the way.

Overall rating

6.6 /10

Blend of catch potential, access, safety, and overall experience.

Category scores

Catch Potential 7/10
Species Variety 7/10
Scenery & Comfort 8/10
Safety 4/10
Accessibility 5/10

Pollack 9/10
Tip: Very consistent on spinning/soft plastics or float-fished sandeel; hit the tide run and kelp edges, especially into HW.
Ballan Wrasse 8/10
Tip: Float fish close to rocks with crab or hardback; use strong gear and be ready to bully fish away from kelp.
Bass 7/10
Tip: Best at dawn/dusk and in a bit of surf; try spinners, surface lures, or fresh sandeel/mackerel over broken ground.
Coalfish 6/10
Tip: Often mix with pollack; take small lures/jigs, especially when baitfish are present in late summer/autumn.
Mackerel 6/10
Tip: Summer shoals show some years; feathers or small metal jigs cast into deeper water on the flood tide.
Goldsinny Wrasse 6/10
Tip: Common around weed-covered ledges; small hooks and light float rigs with rag/crab pieces work well.
Pouting 5/10
Tip: Occasional on small fish baits or rag on light ledger; more likely at night in deeper, calmer conditions.
Conger Eel 5/10
Tip: Possible after dark from deeper ledges; fish big squid/mackerel on a strong trace—expect serious snags.
Lesser Spotted Dogfish 4/10
Tip: Can turn up on ledgered fish baits on the sandy patches beyond rough ground; usually a by-catch.
Bull Huss 4/10
Tip: Occasional in rougher seas; fish large oily baits on robust tackle and keep clear of kelp-covered snag zones.

Local knowledge

Blue Lagoon (Abereiddi) fishing guide

Practical access, seasons, methods, tides, safety and facilities for this mark.

Abereiddi’s Blue Lagoon is a dramatic, flooded former slate quarry on the north Pembrokeshire coast, better known for coasteering and cliff jumping than for angling. For sea anglers it’s a specialist venue: deep water, steep rock, and changeable swell can fish well, but access and safety considerations are as important as the tackle you bring.

  • Deep, clear water tight to rock can hold pollack, wrasse and occasional bass when conditions are right
  • Popular with swimmers and adventure groups in season, so angling is often best early/late or out of peak times
  • Not a “plug-and-play” mark: exposure, slippery rock and sudden surges make it suitable only for competent rock anglers

The Blue Lagoon sits just west of Abereiddi and is reached via the National Trust coastal paths and quarry tracks; it’s close to the village but feels wild once you’re down at water level. The approach is straightforward in dry weather, yet the final scramble and ledges can be awkward with a lot of gear.

  • Access is on foot along coastal footpaths and quarry approaches; expect uneven ground and steps/rocky descents near the lagoon
  • Travel light: a rucksack, compact lure kit and minimal bait/sinkers are far easier than a full beach set-up
  • If the lagoon itself is busy, there are nearby rock edges on the open coast that can offer safer casting angles depending on swell

This is primarily a lure and float-fishing rock mark, with species reflecting rough ground and kelp-lined edges. Catches vary massively with sea state, clarity, and how much swell is running into the quarry opening and adjacent coastline.

  • Pollack: common target on lures, especially when there’s a little colour and movement in the water
  • Ballan wrasse: present around kelp and boulder habitat; best approached with careful, close-range tactics
  • Bass: possible at times, particularly in warmer months and when baitfish are present; expect them to be hit-and-miss
  • Mackerel: may show in season when shoals come close; useful for fresh bait if permitted and practical
  • Conger: potential in deep rough ground, but this is not an easy or beginner-friendly place to target them

The best approach at Abereiddi is usually mobile lure fishing or light float/ledger work close to the structure, keeping gear simple and landing plans realistic. Big sinkers and long casts are rarely the point here—presentation tight to rock and kelp is.

  • Spinning/soft plastics: fish shads, sandeels and weighted weedless rigs along kelp edges for pollack and bass
  • Metal lures: use when mackerel are present or when you need to get down quickly in deeper water
  • Float fishing: wrasse tactics with a strong float set-up, abrasion-resistant line, and baits like crab or ragworm where allowed/available
  • Light ledgering: short-range into gullies/holes with strong hooks and a plan to keep fish out of snags
  • Landing: use a long-handled net or drop net if you can position it safely; avoid marks where a fish can’t be landed without dangerous reaching

Because the lagoon and surrounding rock are exposed to Atlantic swell, conditions dictate everything—some days it’s fishable and others it simply isn’t. Moderate movement and a bit of colour can help, but too much swell or surge turns it into a no-go.

  • Sea state first: avoid fishing if swell is pushing hard into the quarry opening or washing over ledges
  • Water clarity: crystal-clear calm water can make fish wary; a light ripple or slight colour often improves sport
  • Tides: depth is substantial, but ledge access and safe footing can change with tide height; check what areas flood and cut off
  • Wind: onshore winds can make the place rough quickly; strong crosswinds can also make lure control difficult
  • After rain: runoff can add colour and food—useful for bass/pollack—but can also make paths and rock dangerously slick

This is a serious rock mark with steep edges, slippery slate/rock, and the potential for sudden surges. Treat it like a mountaineering-style outing: if you’re not 100% confident in the conditions, choose a safer nearby venue.

  • Wear proper rock boots or studded soles; slate and algae-coated rock can be treacherous
  • A buoyancy aid is strongly advised; a helmet is sensible if you’re near cliffy sections or below other users
  • Never fish alone here, and always keep well back from the edge when sets of swell roll through
  • Plan an exit: identify where you can safely retreat if the sea rises or the wind swings onshore
  • Be mindful of other users (swimmers/coasteerers); keep casting zones clear and line out of access routes
  • Accessibility is limited: uneven paths, steps and scrambles make it unsuitable for many mobility needs

Facilities are limited at the water’s edge, but Abereiddi is a small, well-visited spot with basic amenities nearby depending on season. Expect a walk-in mark with no shelter once you’re down by the lagoon.

  • Parking is available in the Abereiddi area; from there it’s a walk to the lagoon and surrounding rock
  • No tackle shop on the rocks: bring spare leaders, clips and lures as snags are common
  • Mobile signal can be variable on the coast; don’t rely on it as your only safety plan
  • Nearby villages offer refreshments/toilets seasonally, but assume you’re self-sufficient on the mark

Abereiddi rewards anglers who fish smart and discreet, picking calm windows and moving to where the water is working. Keeping gear minimal and focusing on landable spots makes a huge difference.

  • Fish first/last light for pollack and bass, especially if the lagoon is busy during the day
  • Use abrasion-resistant leader (heavy fluorocarbon or similar) and check it often—rock and slate chew line quickly
  • Work lures parallel to the rock face and over kelp tops rather than trying to cast “as far as possible”
  • Have a pre-decided “walk away” threshold for swell; if you’re getting wet feet unexpectedly, you’ve stayed too long
  • Consider nearby alternative marks on the same stretch if the lagoon is crowded or unsafe—north Pembrokeshire has plenty of rock options

There isn’t a widely publicised, blanket “no fishing” rule specific to the Blue Lagoon that applies at all times, but local management and safety signage can change and some areas may have restrictions. You should treat this as a shared, high-traffic recreation site and comply with any posted rules.

  • Check on-site signage for any temporary restrictions related to events, safety, or access management
  • If fishing near other water users, maintain clear separation and avoid casting when swimmers/coasteerers are present
  • Observe UK and Welsh sea angling rules for protected species and any local bylaws; if unsure, verify with official sources before fishing
  • Respect the National Trust/landowner access guidance where applicable (paths, gates, and any “no access” areas)