Routes

Planner

Features

Updates

App

Get the App

Llanfihangel Cwmdu With Bwlch And Cathedine

Cwm Cadlan Nature Reserve – Blaen-y-Glyn Climb loop from Bwlch

Llanfihangel Cwmdu With Bwlch And Cathedine

Cwm Cadlan Nature Reserve – Blaen-y-Glyn Climb loop from Bwlch

Hard

5.0

(1)

137

riders

Cwm Cadlan Nature Reserve – Blaen-y-Glyn Climb loop from Bwlch

04:17

85.9km

1,260m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: June 10, 2026

Tips

Includes a movable bridge

Check opening times.

After 81.2 km for 9 m

Waypoints

Start point

Bus stop

Get Directions

17.6 km

Mynydd Illtud Common

Highlight (Segment) • Trail

An undulating area of common land. It's a gentle climb from the Brecon side perfect for shaking off any cafe legs. The road is quite exposed so it can be a struggle if the wind is against you. A great warm-up if carrying on to climb The Devil's Elbow.

Tip by

32.2 km

Devil's Elbow Climb from Heol Senni

Highlight (Segment) • Viewpoint

The Devil’s Elbow epitomises the harsh beauty of hidden Wales. With its crumbling surface and neglected rusting barriers it weaves through beautifully rugged scenery presenting one of the toughest challenges of the event.

To start, leave the small village of Heol Senni, follow the river south, and begin the climb adjacent to a right-hand junction. The narrow strip of tarmac climbs and winds through twisted trees either side, easing a pinch as you cross the first of two cattle grids.

You feel like you’re in a truly isolated wilderness here as the road gradually climbs steeper up to two wicked hairpins: first sharp left and then sharp right, with a remorseless stretch in between them. Round the second hairpin and it eases to finish at the brow where the beauty of your surroundings will soon sooth any pain.

Tip by

34.4 km

Maen Llia Standing Stone

Highlight • Monument

According to legend, the stone goes down to the river, the Afon Llia to drink on occasion. This tall tale seems likely to be an allusion to the fact that its shadow is cast across the moorland as far as the river when the sun is low in the evening sky.

Tip by

46.4 km

Cwm Cadlan Nature Reserve

Highlight (Segment) • Trail

A climb and descent in any direction this takes you over the Cadlan Nature Reserve. Marshy grassland doesn't appear by accident, there's often cloud/drizzle in the air!

Tip by

60.9 km

Pontsarn Viaduct

Viewpoint

65.5 km

West Shore Road, Pontsticill Reservoir

Highlight (Segment) • Trail

If you're not equipped for the gravel track on the East shore of Pontsticill Reservoir, the road on the West shore offers a fun tarmac alternative. A nice long straight to crank out some speed, or if it's the views you're after a nice viewpoint from the lay-by.

Tip by

66.4 km

View of the Lake in Bannau Brycheiniog National Park

Highlight • Lake

69.0 km

Taf Fechan Forest

Forest

70.4 km

Blaen-y-Glyn Climb

Highlight (Segment) • Trail

Blaen-y-glyn climb gives beautiful views of the Brecon Beacons on a clear day! Big descent on the other side! If you're not in a rush, pull over into the car park at the top and go and explore the waterfalls on foot.

Tip by

75.4 km

Talybont Reservoir West Shore

Highlight • Viewpoint

If you don't fancy the long gravel trail on the East shore, this is your tarmac option.

Tip by

76.5 km

Talybont Reservoir Nature Reserve

Nature Reserve

85.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

65.0 km

13.1 km

5.17 km

2.48 km

188 m

Surfaces

80.1 km

3.43 km

2.47 km

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (440 m)

Lowest point (110 m)

Weather

Thursday 16 July

27°C

11°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Hard

4.7

255

Crickhowell, Hay on Wye & Gospel Pass loop from Abergavenny — Bannau Brycheiniog (Brecon Beacons) National Park

04:10h

85.8km

1,070m

Hard

4.7

231

Gospel Pass & Black Mountains loop from Hay-on-Wye — Brecon Beacons National Park

03:59h

81.8km

1,010m

Moderate

4.3

125

Brecon Beacons National Park Reservoirs loop

02:56h

59.9km

720m

Moderate

4.7

Gospel Pass & Pandy loop from Hay on Wye — Bannau Brycheiniog (Brecon Beacons) National Park

02:50h

57.8km

860m

Hard

5.0

Brecon Beacons Devil short loop from Hay on Wye — Bannau Brycheiniog (Brecon Beacons) National Park

04:09h

83.8km

1,120m

Moderate

4.7

Rhigos to Bryn Du loop from Aberdare

02:16h

42.1km

790m

Hard

5.0

Three Peaks loop around the Skirrid, the Sugar Loaf and the Blorenge — Brecon Beacons National Park

03:39h

58.7km

1,050m

Moderate

5.0

Brecon, Talgarth & Cwmdu loop from Crickhowell

02:46h

59.9km

690m

Hard

5.0

Devil's Elbow loop from Brecon

04:01h

72.4km

1,130m

Moderate

4.0

Four Castles Cycle Route from Abergavenny

02:45h

52.8km

810m

Hard

Hereford, Black Mountains & Gospel Pass loop from Hay-on-Wye

04:57h

95.9km

1,340m

Hard

Pontsticill & Talybont Reservoirs & Llangorse Lake loop from Abergavenny — Bannau Brycheiniog (Brecon Beacons) National Park

04:34h

90.6km

1,170m

Cwm Cadlan Nature Reserve – Blaen-y-Glyn Climb loop from Bwlch

Mynydd Illtud Common

Devil's Elbow Climb from Heol Senni

Maen Llia Standing Stone

Cwm Cadlan Nature Reserve

West Shore Road, Pontsticill Reservoir

View of the Lake in Bannau Brycheiniog National Park

Blaen-y-Glyn Climb

Talybont Reservoir West Shore

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️