Revisited: Cors y Llyn

Cors y Llyn is a level, accessible nature reserve wander that consists of grass tracks and a well maintained boardwalk. It is quite open in places so dress for the elements if it is particularly windy or sunny. This quiet reserve is only a few minutes off the A470 and has free onsite parking, great for stretching your legs on a long journey. Our adventure took us around the boardwalk loop, however there are also two footpaths linked to the site that could make your wander longer and more varied. We have included these on our map for you to take a look; please note, they are not suitable for pushchairs.

Cors y Llyn (boardwalk trail)

Distance: just under 1 mile

Time: 30 mins – it took us 50 mins with a wanderer


As a short, level wander this was the perfect choice for our first outing after welcoming another wild child to the world – although this one seems a lot more relaxed! We visited on a cold afternoon and even though the sun was out, the boardwalk was icy. This reserve truly feels like you’ve stepped back in time with tiny trees stunted by the boggy conditions. Some of the boardwalk is covered in water and whilst it’s not deep, wellies or something waterproof up to the ankles is best.

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From the car park walk past the information sign and go through the gate to the right hand side of the parking area. The gates on this site are suitable for use from a wheelchair too!

The first part of this trail is a grassy track which leads down to another gate.


Once you’re through this gate take the right hand track that will lead you around a lake area to another gate. This area is fenced off so little wanderers are safe to roam as they can’t get close to the water.


Next you will come to two gates. For the boardwalk take the left hand gate. The other gate leads to a footpath that can be followed to form another loop in your adventure, it goes through some bumpy fields (see map below).


Now you are on the boardwalk! This guide goes anti-clockwise. First you will wander through trees…

Then it becomes more open…

We had a fantastic time carefully touching the different plants that live at the edge of the bog and looking for wildlife. We saw a tiny frog and this amazing caterpillar…

There are a number of lovely seating areas around the boardwalk as well as passing places if you meet other families with wheels. Please be aware that you must stay on the boardwalk and not wander onto the bog.

When you complete the boardwalk circle your little adventurer may wish to go again, or you can head back around the lake towards the car park. At the next gate instead of heading straight home we wandered through the right-hand gate and onto the grassy bank.

This runs adjacent to the lake and is great for viewing any waterbirds that might be hiding – we saw a heron! This would be a wonderful place to have a picnic or sit down for a well earned rest. Please be aware that there isn’t a fence between the water and your little wanderer so don’t let them explore too close to the edge without an adult nearby. At the far end of this bank is a gate leading to a footpath, creating another short loop through an open field (see map).


Then finish your wander by strolling back to the parking area.

Use this map to guide you on your way. Click to enlarge.


Click on the map below to view it on ViewRanger.

The OS grid reference is SO 015 553.

Cors-y-Llyn Map

This trail is a National Nature Reserve which is maintained by Natural Resources Wales.

First-nature have a super website with information about the Cors y Llyn from which I’ve taken the following directions.

Directions:  If travelling from the north, you should drive through Newbridge on Wye and turn right onto the former A470 road immediately outside the village. This road now runs parallel with the new A470 road south towards Builth Wells.

Continue along this road for approximately 2.5km (1.5 miles) and look out for an unsigned right-hand turn (pictured below) with a cream cottage on the left hand side of the road (as you drive south).


If approaching from Builth Wells there is a left turn off the new A470 road signed towards Cwm Bach Llechryd. This takes you onto the former A470 and the NNR is then a left hand turn opposite the cottage pictured above.

Turn into the narrow lane and continue along it about 400m (1/4 mile), passing through a farmyard, until you reach the end of the road. There you will find a parking area.

Happy wandering,

The Beckingham Family

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