GPS Cycle and Walking Routes

Three Castles Walk

20 miles (32 km)

Visit the three Norman fortresses of Skenfrith, White Castle and Grosmont on this beautiful circular walk through Monmouthshire.
The trail takes the walker through woodland and over hills including Graig Syfyrddin (Edmund's Tump), from which there are spectacular views of the Welsh Marches, the Black Mountains and the Forest of Dean.
The walk is waymarked with a brown and white disc featuring a castle.

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Three Castles Walk OS Map - Mobile GPS OS Map with Location tracking

Three Castles Walk Open Street Map - Mobile GPS Map with Location tracking


In Skenfrith you could enjoy a pit stop at The Bell. The restaurant here serves high quality food for which it has won many awards includingthe ‘Best Place to Eat – Pub’ in theWales National TourismAwards. There's also the Dog and Boot Bar which is better for muddy walkers and their four legged friends. You can find them at postcode NP7 8UH for your sat navs.

Further Information and Other Local Ideas

At the western end of the walk near the White Castle you can pick up the Offa's Dyke Path. Near here you also have the option of climbing to one of the highlights of the area at Skirrid Fawr. There are some wonderful views over Monmouthshire from this popular viewpoint.

Cycle Routes and Walking Routes Nearby


Defensible positioning of Skenfrith Castle - - 2300867

Defensible positioning of Skenfrith Castle. Skenfrith Castle is now run by the National Trust. The ruins date from the 13th century and are positioned beside the River Monnow.

Curtain Wall at White Castle - 1 - - 2109001

Curtain Wall at White Castle. The ruinedcastle is locatednear the village ofLlantilio Crossenny. In 1135, a major Welsh revolt took place and in response KingStephenbrought together White Castle and its sister fortifications ofGrosmontandSkenfrithto form a lordship known as the "Three Castles", which continued to play a role in defending the region from Welsh attack for several centuries.

Grosmont Castle - - 972826

Grosmont Castle. The fortification was established by the Normans in the wake of theinvasion of Englandin 1066, to protect the route from Wales toHereford.Edward I'sconquest of Walesin 1282 removed much of Grosmont Castle's military utility, although it was besieged in 1405 during theGlyndŵr Rising. By the 16th century it had fallen into disuse and ruin. The castle was placed into the care of the state in 1922, and is now managed by theCadwWelsh heritage agency.

View to Graig Syfyrddin - - 2123357

View to Graig Syfyrddin, a 423m high hill nearGrosmont. The summit knoll is known asEdmund's Tump. The path passes over the hill providing some excellent views.

Ysgyryd Fawr and Sugar Loaf - - 211465

Ysgyryd (Skirrid) Fawr and Sugar Loaf viewed from the slopes of Graig Syfyrddin on the Three Castles Walk.

View over Grosmont - - 212324

View of Grosmont from the trail, above Cross on the northern slopes of Graig Syfyrddin.

The Three Castles Walk - - 568727

A flat section before heading to High Meadow in the distance and then on to Grosmont.

Farm track on the Three Castles Walk - - 2108678

Farm track near Llangattock-Vibon-Avel in Monmouthshire.


GPS Files

GPX File

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

Memory Map Route

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