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Porth Yr Ogof Cave – Fan Gyhirych Forest Road loop from Ystradfellte

Routes

Mountain biking trails

Porth Yr Ogof Cave – Fan Gyhirych Forest Road loop from Ystradfellte

Moderate

4.5

(2)

riders

Porth Yr Ogof Cave – Fan Gyhirych Forest Road loop from Ystradfellte

03:20

37.4km

790m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: June 18, 2026

Tips

Cycling is not permitted along parts of this route

After 94 m for 164 m

After 592 m for 50 m

After 5.72 km for 458 m

Waypoints

Start point

Parking

Get Directions

125 m

Porth Yr Ogof Cave

Highlight • Cave

Porth Yr Ogof (gateway to the cave, in Welsh) boasts the largest entrance of any cave in Wales at over 55 feet (17 m) wide and almost 16 feet (5 …

Tip by

425 m

Cave Entrance, Bannau Brycheiniog National Park

Highlight • Cave

Busy car park and £6 a day parking.

Tip by

12.9 km

Fan Gyhirych Forest Road

Highlight • Cycleway

Possibly the highest through-route forest road in the southern UK.
Recently upgraded forest road, nice and smooth for the moment with fantastic views all around

Tip by

34.7 km

Lime Kiln in Bannau Brycheiniog National Park

Highlight • Historical Site

At a guess I'd say this was a lime kiln used to create calcium carbonate powder to use in mortar for building.

Tip by

35.7 km

Ancient Trackway Across Farmland

Highlight • Natural

A nice bridleway across farmland in the National Park.
Mostly a good surface although soft and boggy in places

Tip by

36.4 km

Sunken Lane in Bannau Brycheiniog National Park

Highlight • Forest

A nice old drovers road from Ystredfellte onto the tops.
Good surface, a few gates, and then you're out into farmland.

Tip by

37.4 km

End point

Parking

Way Types & Surfaces

Way Types

15.9 km

14.9 km

6.33 km

266 m

Surfaces

19.2 km

16.0 km

1.56 km

615 m

< 100 m

Elevation

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

Highest point (660 m)

Lowest point (240 m)

Weather

Wednesday 1 July

17°C

9°C

0 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

Comments

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

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Porth Yr Ogof Cave – Fan Gyhirych Forest Road loop from Ystradfellte

Porth Yr Ogof Cave

Cave Entrance, Bannau Brycheiniog National Park

Fan Gyhirych Forest Road

Lime Kiln in Bannau Brycheiniog National Park

Ancient Trackway Across Farmland

Sunken Lane in Bannau Brycheiniog National Park

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