Diffwys, Y Llethr and Rhinog Fach
3 Hewitts in Eryri (Snowdonia), climbed together from Craig y Dinas Hillfort.
- Distance
- 21.8 km
- Ascent
- 1110 m
- Time
- 7–9.5 h
- Grade
- Hard
- Route
- Circular
- High point
- 755 m
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Route mapped on from OpenStreetMap paths, with heights from EU-DEM terrain data; not yet checked on the ground by TRXO. Added to TRXO on . For planning only: always navigate with an up-to-date map such as OS Explorer or Harvey. How we make our routes.
About this walk
Diffwys, Y Llethr and Rhinog Fach is a hard 21.8 km circular walk with 1,110 m of ascent, taking 7 to 9.5 hours. It starts at Craig y Dinas Hillfort (grid reference SH 622 237). It climbs 3 listed hills, the highest Y Llethr at 755 m.
Diffwys, Y Llethr and Rhinog Fach are Hewitts in Eryri (Snowdonia), close enough to climb together. The highest, Y Llethr, reaches 755 m (2,477 ft). Hewitts are the hills of England, Wales and Ireland over 2,000 ft (610 m) that rise at least 30 m above their surroundings.
This route starts from Craig y Dinas Hillfort and follows paths and tracks for most of the way, with rougher ground near the top. It links the summits along the ridge between them, then returns to the start. It's a long day: many people cycle any track at the start.
Route
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1
The approach
From Craig y Dinas Hillfort, follow the path and tracks towards Diffwys.
-
2
The summits
Climb Diffwys, then continue to Y Llethr and Rhinog Fach.
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3
Return
Descend and return to the start.
Summits
Questions about this walk
- How long does Diffwys, Y Llethr and Rhinog Fach take?
- Most walkers take 7–9.5 hours for the 21.8 km route, which has 1,110 m of ascent. That allows for short stops; give yourself longer in winter, in poor weather or with a group.
- Where does the walk start, and where can I park?
- It starts at Craig y Dinas Hillfort (grid reference SH 622 237). Park considerately off the road; don't block gates, passing places or farm tracks.
- Can I get there by public transport?
- Not easily: there's no regular bus or train to the start, so you'll need a car, a lift or a long walk in.
- How hard is it?
- It's graded hard. Paths and tracks for most of the way, then rough hill ground near the summit.
- Which hills does it climb?
- Y Llethr (755 m, Hewitt); Diffwys (750 m, Hewitt); Rhinog Fach (712 m, Hewitt).
- Can I take my dog?
- Yes, dogs are welcome on this walk. Before you go: Sheep graze the lower slopes: keep dogs on a lead, especially during lambing (April and May).
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