Cadair Idris
Trip Guide & 3D Map
Snowdonia · Difficulty, season, and access — then explore the 3D terrain
Planning snapshot
Cadair Idris is a 2,930 ft summit in the Snowdonia (United Kingdom). PeakAtlas rates it strenuous hike (Strenuous day hike); best season is May–Sep. No special summit permit. Typical staging is Dolgellau (4.0 mi). Limited lodging data is mapped from OpenStreetMap for this region — stage in the listed town rather than expecting a full hotel directory. Use the 3D map and trip checklist before you go.
- Elevation
- 2,930 ft
- Prominence
- 1,995 ft
- Difficulty tier
- Strenuous hike
- Best season
- May–Sep
- Permits
- No special summit permit
- Staging
- Dolgellau · 4.0 mi
- Mapped lodging
- Limited / none mapped
- Listed trails
- —
As of 2026-07-31 · Figures come from the PeakAtlas3D catalog: surveyed elevations and prominence, curated difficulty tiers, best-season windows, permit notes, staging-town distances, trail lists, and OpenStreetMap lodging near each summit. Not live weather, quotas, or prices.
How hard is Cadair Idris, and what do you need before you go?
Cadair Idris is listed as Strenuous day hike with a best season of May–Sep. Use the difficulty, permit, and staging details below before you commit to a date.
- Difficulty
- Strenuous day hike
- Best season
- May–Sep
- Access / staging
- Dolgellau, Gwynedd
How tall is Cadair Idris, and where is it?
- Location
- Gwynedd, United Kingdom
- Elevation
- 2,930 ft
- Prominence
- 1,995 ft
- Mountain range
- Snowdonia
- Difficulty
- Strenuous day hike
What makes Cadair Idris notable?
Southern Snowdonia’s signature summit and one of Wales’s most popular mountain days outside Yr Wyddfa.
Southern Snowdonia massif above Dolgellau — popular Minffordd and Pony Path routes to Penygadair with glacial cwms and big coastal views.
After you check trip readiness for Cadair Idris, explore the summit on PeakAtlas3D’s interactive 3D topographic map in the Snowdonia, Gwynedd, United Kingdom.
Closest places
- Dolgellau — Gwynedd via Minffordd / Pony Path