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The Blue Lagoon and slate cliffs at Abereiddy in Pembrokeshire

Abereiddy · Blue Lagoon · coasteering country

A flooded quarry at the wild edge of the coast.

The Blue Lagoon is one of north Pembrokeshire’s most distinctive landscapes: dark slate, deep green-blue water and a coast-path route that can continue all the way to lunch in Porthgain.

Plan the day
Blue Lagoon photograph: Cleopatra Browne · CC BY-SA 3.0 ↗
From the barnApprox. 4 miles
Typical driveAbout 10 minutes
Best forCoast walks, guided coasteering and dramatic scenery
When to goGo early in summer; check wind, tide and parking

Why make the trip?

Come for the landscape. Enter the water only with proper judgement.

The lagoon is a former slate quarry breached by the sea. It has hosted the Red Bull Cliff Diving World Series, but that spectacle is not an invitation to copy the jumps. For guests, the best experience is a guided coasteering session or the clifftop walk from Abereiddy towards Porthgain.

01

The famous view

Walk above the quarry for the full shape of the lagoon, slate ruins and open coast.

02

A guided adventure

Book a recognised local coasteering provider; tides, swell and safe exits determine the venue.

03

Walk to lunch

Continue east on the Coast Path to Porthgain, then arrange a bus, taxi or second car.

A professional cliff diver above the Blue Lagoon at Abereiddy

The Red Bull connection

World-class diving happened here. Your day should be safety-led.

Watch the official Red Bull highlights for the scale of the place, then leave the serious jumping to professionals. Local guides choose appropriate routes and lower challenges for the conditions and your group.

Know before you go

The details that keep a group day easy.

ParkingSmall National Trust car park; fills quickly
FacilitiesSeasonal facilities only; Porthgain has more
DogsCoast-path leads essential near cliffs and livestock
AccessUneven quarry and coast-path terrain

Shape it around your group

Ask Daisy how this place fits into your stay.

Tell her the ages, interests and pace of your group. She can help pair the main outing with a gentler alternative and the right place to eat afterwards.

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