Coed y Brenin Forest Park - Ty’n y Groes

Riverside picnic area and gateway to an all-ability riverside walk and a rugged mountain trail with great views over Snowdonia

What's here

Coronavirus update


The Welsh Government is implementing a national coronavirus firebreak from 6pm on Friday 23 October until Monday 9 November.


The firebreak regulations replace the local restrictions which were in force in some parts of the country. They apply to everyone living or travelling in Wales.


Our sites and most visitor facilities remain open during this firebreak period but people are advised to stay at home and only visit sites in the local area to take exercise.


Visiting your local site safely


We have changed the normal route for some of our trails to help you maintain social distancing – please follow signs on site.


You need to wear a mask when going inside one of our buildings.


You can check-in via the NHS app when entering one of our buildings – scan the QR-code on the NHS Covid-19 poster on site.



The car park and riverside picnic area at Ty'n y Groes is the starting point for two forest walks.

The King’s Guards Trail is an accessible trail along the river and past the tallest trees in Coed y Brenin Forest Park.

The Penrhos Mountain Trail is a rugged mountain route with the reward of some great views over Snowdonia.

There is a level grassy area in the car park where children can play. 

There are also barbeque facilities and the car park has toilets.

Download more information about Ty'n y Groes.

Walking trails

The walking trails are waymarked and start from the car park.  

The King’s Guards Trail (blue waymarkers)

Distance: ½ mile/850 metres

Grade: accessible 

Highlights: See the magnificent Douglas firs, the biggest trees in Coed y Brenin, on this walk accessible to all.

Trail description: The blue waymarked accessible trail is a short loop path which leads to the ‘King’ and then returns to the car park.

It is a well surfaced 2m wide route and is suitable for wheelchairs. There are resting points at least every 100m.

There are no steps or stiles.

More information: walk card and audio trail

The King’s Champion Trail (yellow waymarkers)

Highlights: Enjoy this flat family riverside walk to the biggest trees in the forest. You walk to the 'King', the tree with the widest trunk, and the 'King's Champion', the tallest tree, and visit the commemorative stone. 

Distance: ¾ mile/1.1 kilometres

Grade: easy

Trail description: The route follows the accessible trail to the ‘King’ on a well surfaced 2m wide route, suitable for wheelchairs.

It then goes on to the ‘Champion’ on a slightly steeper gradient and descends back to the car park on a tarmac road with a slope of 20%/1 in 5. This section is suitable for pushchairs.

There are no steps or stiles along the whole trail.

More information: walk card and audio trail

Penrhos Mountain Trail

Distance: 3¼ miles/5.3 kilometres

Grade: strenuous

Highlights: Like the name suggests, the Penrhos mountain trail gives you a real feel of mountain walking and you will be rewarded at the top with outstanding views of Y Garn, Cader Idris and Rhobell Fawr.

Trail description: The trail has steep and narrow paths, often less than 50cm wide in places, on an unmade, uneven surface, where you can expect mud, rocks and tree roots.

The trail also has several flights of steps. Once you reach the summit viewpoint there is a bench where you can rest and take in the magnificent views.

More information: walk card

Accessibility information

The first part of the King’s Guards Trail is on almost flat ground and is suitable for wheelchairs.

Facilities in Ty’n y Groes car park include:

  • disabled parking 
  • disabled toilets 

Opening times 

The toilets at Ty'n y Groes are open all the time.

Closures and diversions

Please note:

  • Sometimes we need to close or divert trails for your safety whilst we undertake maintenance work or forest operations
  • Occasionally we may have to close a site in extreme weather, such as high winds or snow and ice due to the risk of injury to visitors or staff
  • Please always follow any instructions onsite and make sure you follow any temporary diversion signs in place

How to get here


Ty’n y Groes car park is just off the A470, near the village of Ganllwyd. 

It is in the county of Gwynedd.

The OS grid reference is SH 730 233.

Car parking is free of charge.

Download the location map.


From the south: Take the A470 north from Dolgellau. About 200 metres after passing the Tyn y Groes Hotel, turn right following the brown tourist signs to Ty'n y Groes. The car park is 300 metres down the hill by the side of the river Mawddach.

From the north: Take the A470 south towards Dolgellau.  After passing through Ganllwyd village, turn left following the brown tourist signs to Ty'n y Groes. The car park is 300 metres down the hill by the side of the river Mawddach.

Public transport

The nearest train stations are in Barmouth (Cambrian Coast line) and Blaenau Ffestiniog (Blaenau Ffestiniog-Llandudno line).

For details of public transport visit

Exploring Coed y Brenin Forest Park 

Coed y Brenin Forest Park offers visitors the total woodland experience within Snowdonia National Park.

There is a range of waymarked trails to cater for all tastes and fitness levels in the forest park. These include world-class mountain bike trails, family walks, running trails, geocaching and orienteering routes.

As well as the trails that start here at Ty'n y Groes, there are waymarked walking trails from these places in Coed y Brenin Forest Park:

  • Coed y Brenin Forest Park Visitor Centre - the gateway to the forest park and the starting point for a range of walking, running and mountain biking trails.  There is also a café, running shop and bike shop
  • Pont Cae’n y Coed – start of the rugged Volcano Trail 
  • Tyddyn Gwladys – a picnic site by the rolling Mawddach river and gateway to the Waterfalls and Goldmines walk
  • Forest Garden – a choice of routes through trees from all over the world in the forest garden, one of which is suitable for all abilities
  • Glasdir – an old copper works in a quiet rural setting with an accessible trail to a viewpoint over the mine workings

Contact details

Coed y Brenin Forest Park Visitor Centre

Tel: 01341 440747



Other places in North West Wales