Castles and Town Walls of King Edward in G and Pontcysyllte Aqueduct and Canal
Plan this ride
Recorded distance
369 km
Riding-time estimate
5 h 32
Journey
Recorded itinerary
Distance and timing basis
Ordered leg totals agree within rounding. Stop distances are approximate sums of rounded legs. Stops, delays, approach and any separate return travel add time. Basis: producer-declared routed record.
Reading history stays on this device. My road watch requires a separate selection; opening it does not subscribe this ride.
Distance and riding time are measured on the routed road. Check local closures and conditions before you ride.
369 km from Caernarfon to Caernarfon, about 5 h 32 of riding. On the way it passes Ffestiniog: its Slate Mines and Quarries, Conwy Castle and Town Walls, Pontcysyllte Aqueduct and Canal and back through Conwy Castle and Town Walls. The line favours views over speed.
Scenic road chapters
Snowdonia Llanberis Pass
Speed drops and stays down. Park rather than crawl through. 37 km through ground somebody thought worth listing. The road passes it rather than bypassing it.
Rider note
Check the pass is open before you commit to it.
Chapter facts
Length
50 km
Named road
Snowdonia Llanberis Pass
Pass
Pen y Pass
Waypoint introductions and full write-ups
1. Castles and Town Walls of King Edward in G
Edward I built Caernarfon to be unmistakable. Begun in 1283, after his conquest of Wales, the castle rises beside the Menai Strait with polygonal towers and bands of coloured stone that echo, it is said, the walls of Constantinople, a deliberate reference to imperial power. The King wanted a seat of government as well as a fortress, and the town walls were built to enclose a planted English borough, so the whole thing was an act of colonisation in stone. UNESCO listed Edward's castles and town walls in Gwynedd in 1986, together with Conwy, Harlech and Beaumaris, and Caernarfon is the grandest of them.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
Castles and Town Walls of King Edward in G is where the day begins. Next is Ffestiniog: its Slate Mines and Quarries.
2. Ffestiniog: its Slate Mines and Quarries
Blaenau Ffestiniog is a town built on, among and out of slate. Great grey tips of waste rock tumble down the mountainsides around it, old quarry inclines climb the slopes, and the houses, chapels and walls are all made of the same dark stone. For a century and more this was one of the slate capitals of the world, roofing houses from London to Melbourne, and since 2021 it has been part of the UNESCO-listed Slate Landscape of Northwest Wales. It is not pretty in the conventional sense, but it is magnificent, and on a day of sun breaking through rain clouds it can look like a lunar landscape lit by spotlights.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
Ffestiniog: its Slate Mines and Quarries comes up about 50 km into the recorded legs. Next is Conwy Castle and Town Walls.
3. Conwy Castle and Town Walls
Edward I built Conwy Castle in just four years, from 1283 to 1287, as part of his campaign to subdue the Welsh, and the result is one of the most impressive medieval fortresses in Europe. Designed by the master mason James of St George, it stands on a rock above the estuary of the Conwy river, with eight massive towers and high curtain walls, and the town below is still enclosed by its original walls, with twenty-one towers and three gateways. Walking along the walls gives superb views of the town, the castle, the estuary and the mountains of Snowdonia. The castles and town walls of King Edward in Gwynedd were inscribed on the UNESCO list in 1986.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
about 93 km into the recorded legs you reach Conwy Castle and Town Walls. Next is Pontcysyllte Aqueduct and Canal.
4. Pontcysyllte Aqueduct and Canal
You hear it before you understand it: water running in an iron trough thirty-eight metres above the River Dee, on stone piers so slender they look drawn rather than built. Thomas Telford and William Jessop finished the Pontcysyllte Aqueduct in 1805 to carry what is now the Llangollen Canal across the valley, and more than two centuries later narrowboats still glide over it, steered by people trying very hard not to look down. There is a towpath on one side with railings; on the other side there is only the edge of the trough and air. Walk across if you have a head for heights. It is one of the strangest and best ten minutes in Wales.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
back through Ffestiniog: its Slate Mines and Quarries comes up about 320 km into the recorded legs. Next is Castles and Town Walls of King Edward in G.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
Castles and Town Walls of King Edward in G closes the day.
Leg by leg
Castles and Town Walls of King Edward in G to Ffestiniog: its Slate Mines and Quarries
Castles and Town Walls of King Edward in G → Ffestiniog: its Slate Mines and Quarries is 50 km of rhythm rather than effort. Let it flow and let the view breathe.
Ffestiniog: its Slate Mines and Quarries to Conwy Castle and Town Walls
Ffestiniog: its Slate Mines and Quarries → Conwy Castle and Town Walls is 43 km of rhythm rather than effort. Let it flow and let the view breathe.
Conwy Castle and Town Walls to Pontcysyllte Aqueduct and Canal
Conwy Castle and Town Walls → Pontcysyllte Aqueduct and Canal is 94 km of getting across. Ride it tidily and keep the enthusiasm for what comes after.
Pontcysyllte Aqueduct and Canal to back through Conwy Castle and Town Walls
Pontcysyllte Aqueduct and Canal → back through Conwy Castle and Town Walls is 90 km of getting across. Ride it tidily and keep the enthusiasm for what comes after.
back through Conwy Castle and Town Walls to back through Ffestiniog: its Slate Mines and Quarries
back through Conwy Castle and Town Walls → back through Ffestiniog: its Slate Mines and Quarries is 43 km of rhythm rather than effort. Let it flow and let the view breathe.
back through Ffestiniog: its Slate Mines and Quarries to Castles and Town Walls of King Edward in G
back through Ffestiniog: its Slate Mines and Quarries → Castles and Town Walls of King Edward in G is 50 km of rhythm rather than effort. Let it flow and let the view breathe.