The Mawddach Big 8

mawddach big 8 cycle routeOverview

This is a huge challenge, only for the fit and able riders capable of big distances. It’s made up of two 80km loops that start and finish in the same place hence make it possible to do it all in one day. The more sensible option would be to split it over a weekend and stay with us at out Coed-y-Brenin venue at Llanelltyd.


The routes uses quiet back-roads and tracks, although there are a few sections of busier roads. The tracks, although rough in places, involve no technical mountain biking and with care should be passable on a hybrid bike or tourer. The roughest of these is probably the Ffordd Ddu on the South Loop. Add in over 4,500m of climb along the way, and the scale of the challenge starts to take shape.

If you fancy doing it on a road bike then follow the loops formed by the A 496 and A 470 to the north, and A 493 and A 470 to the south to avoid the off-road sections. It’s slightly shorter at just over 150 km and with 200m less climbing.


Coming soon.

Start Point

The trail starts at the market town of Dolgellau or you could do it from our Coed-y-Brenin venue at Llanelltyd