GPS Cycle and Walking Routes

Llyn Cwellyn

4 miles (6 km)

This figure of eight walk climbs into the hills above Llyn Cwellyn before descending to the woodland on the southern side of the water. From the high points there's great views over the lake to Snowdon on the other side. You'll also enjoy views of the nearby Llyn y Dywarchen and a walk along the Afon Drws-y-Coed.
The walk can be started from the southern end of the lake. From here you can pick up trails heading up towards Drws-y-Coed.
You can extend the walk by continuing west and climbing Mynydd Mawr. On the other side of the lake you can pick up the Snowdon Ranger Path.


LL54 7YS - Please note: Postcode may be approximate for some rural locations

Llyn Cwellyn OS Map - Mobile GPS OS Map with Location tracking

Llyn Cwellyn Open Street Map - Mobile GPS Map with Location tracking

Further Information and Other Local Ideas

Just to the west you can explore the Dorothea Quarry where you'll find the remains of the old mining houses and a series of scenic lakes including Llyn Nantlle Uchaf. The quarry is one of the significant sites on the Snowdonia Slate Trail which runs through the area. The circular long distance trail can be used to visit several of the other historic mining areas located in the World Heritage Site. Heading north along the trail would take you to Dinorwic Quarry which was at one time the second largest slate quarry in the world. The site is located on the edge of Padarn Country Park where there are some lovely waterside trails along Llyn Padarn and Llyn Peris.

Cycle Routes and Walking Routes Nearby


Llyn Cwellyn - - 14144

Llyn Cwellyn 1

Llyn Cwellyn - - 7108

Llyn Cwellyn 2

Llyn y Dywarchen - - 22384

Llyn y Dywarchen just south of Llyn Cwellyn. Looking east, towards Moel Hebog in the background. This lake is marked on the OS 1:25,000 map as a reservoir.

Drws y Coed valley - - 245022

Drws y Coed valley

Upper end of the Nantlle Valley - - 1046747

Upper end of the Nantlle Valley. The crag on the left is Clogwyn y Barcut.

Garn from Drws-y-coed - - 252147

Garn from Drws-y-coed

View on Llyn Cwellyn - - 628678

View on Llyn Cwellyn

Llyn Cwellyn from the bank of Afon Goch. - - 612725

Llyn Cwellyn from the bank of Afon Goch.

GPS Files

GPX File

Llyn Cwellyn.gpx (On Desktop:Right Click>Save As. On Ipad/Iphone:Click and hold>Download Linked File)

Memory Map Route

Llyn Cwellyn.mmo (On Desktop:Right Click>Save As. On Ipad/Iphone:Click and hold >Download Linked File)