Twyn Brynbychan Trig Point – Giant's Bite loop from Mountain Ash
Twyn Brynbychan Trig Point – Giant's Bite loop from Mountain Ash
4.8
(5)
14
hikers
Twyn Brynbychan Trig Point – Giant's Bite loop from Mountain Ash
04:26
14.6km
470m
Hiking
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.
Last updated: August 6, 2026
Waypoints
Start point
Train Station
Get Directions
1.27 km
Gillies Trail Waterfall
Highlight • River
Not many people are aware of the path that leads up to the mountain behind Caegarw and the impressive waterfall that is only a short 10 minute walk from the start of the trail.
The path is accompanied by a beautiful river which follows alongside for a good part of the trial and there is a fair share of wildlife to spot too!
If you’re looking for a new place to visit in Mountain Ash or a place to go with your dogs off the lead, this is ideal!
Tip by
4.25 km
Forest Path with Views of Merthyr Tydfil, Merthyr Vale, and Aberfan
Highlight • Trail
Tip by
5.35 km
Twyn Brynbychan Trig Point
Highlight • Natural Monument
Enjoyed a breather on top, before trekking around the back forestry where you can see Aberfan and Merthyr Vale and headed over to the bronze age sight before descending down to Cwmaman and back to the car.
Tip by
8.35 km
Giant's Bite
Highlight • Viewpoint
The site was intensively grazed up to the mid-1990s when a large belt of native trees were planted on the lower slopes.
These trees are now maturing and have helped to heal the visible mining scares. The shales forming the upper soil horizons support a wide variety of native flowering grassland species including wild strawberry, cowslip, foxglove and wild thyme, and the site is increasingly becoming re-vegetated by scrub species.
Incredibly Fine views of the Taff and Cynon valleys are afforded from the summit ridge, while the line of the former Glamorganshire Canal is also discernible.
Tip by
14.6 km
End point
Train Station
Way Types & Surfaces
Way Types
7.32 km
5.62 km
1.03 km
668 m
Surfaces
11.8 km
1.46 km
586 m
473 m
217 m
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Elevation
Highest point (410 m)
Lowest point (110 m)
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Weather
Powered by Foreca
Thursday 3 September
19°C
11°C
88 %
Additional weather tips
Max wind speed: 23.0 km/h
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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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