Holyhead Mountain
coasteering group photo
Photo of a coasteering group traversing a rockface just above the waves
Coasteering - Rhoscolyn

Ynys Llanddwyn Geology & Local Interest Walk

This is one of Anglesey’s best loved walks, in a stunning setting with the mountains of Snowdonia and the Lleyn as a backdrop. The Island was once home to Dwynwen the patron saint of Welsh lovers and a small community of fishermen. The walk will take us over ancient precambrian rocks that tell the story of plate tectonics. We will see how new rocks are formed and how they come to be destroyed. A ‘must-do’ walk if you want to learn about Anglesey’s intriguing geological past.


You can easily book our most popular walks by clicking on the ‘book now’ button. You will be directed to a calendar page with our external online booking partner where you can select from available dates.

We offer a number of dates throughout the year for the Ynys Llanddwyn walk, but this walk can also be run on a bespoke basis to meet your needs.

If you need any assistance with making a booking or there are no course dates advertised for the walk you want through our booking system, please get in touch  to check for alternative availability.

Geology at LLanddwyn

Course Details

Distance: 4.5 miles

Time: approx. 3.5 hours

Terrain: The route follows a mixture of forest track, beach and public footpath. The route is uneven in places but generally on level ground. The route is unsuitable for pushchairs and for those with limited mobility.

Facilities: There are toilet facilities at the car park at the start and finish point.

Start / finish: Newborough Beach Car Park SH 405 633

Please note that there are restrictions on dogs on Newborough beach and Ynys Llanddwyn, please contact us for more information.

Other walking courses

Moelfre history and geology walk

From quiet country lanes, wooded vales with babbling brooks, to open coastal scenery with extensive views, this walk has it all.

Explore some of the fascinating history of the area from the Bronze age, to the Celts and Romans and on to more recent times as we discover the story of the Royal Charter shipwreck. This walk has it all...

Adults: £10
Children: £6

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Rhoscolyn History & Local Interest Walk

One of Anglesey’s most scenic walks.

Walk amongst some of Britain’s oldest rocks, before life as we know it, back to ice ages and the movement of tectonic plates. Hear about the intriguing history of the area, from Saints and Druids to ship wrecks and pirates.

Adults: £10
Children: £6

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Holyhead Mountain & South Stack Walk

A walk along stunning coastal scenery in an AONB

Marvel at 500 million year old early Cambrian quartzite amongst some of the best views and most stunning scenery in the UK. With Chough and Peregrine circling our heads, we will be walking in the footsteps of the Celts, Romans and 19th Century Quarrymen.

Adults: £10
Children: £6