Wales

Cyrniau y Llyn

Height
518 m · 1,699 ft
Grid reference
SJ 00023 24485
Coordinates
52.80859, -3.48467
County / area
Powys
OS Landranger
125
OS Explorer
239
Summit feature
no feature
Key col
SH999252 (480 m)

Access rights here

Conditional Right to roam: Right to roam only on mapped CRoW open access land.

Permission needed Wild camping: Permission needed everywhere.

General position for Wales — local byelaws, seasonal restrictions and closures can override it. Full details: access rights in Wales ·check another location.

Daylight at this summit today

Sunrise
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Sunset
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Daylight
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Civil twilight ends
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Computed astronomically for 52.809, -3.485. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (518 m)…

Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).

Finding the summit

Surveyor's note

ground 30m S at SJ 00027 24457 is c 30cm lower.

The recorded summit point is no feature. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.

Survey method
Abney level
Record revised
10-Dec-12
Drop measured from
SH999252 · 480 m

Survey notes are field observations recorded in the Database of British & Irish Hills (v18.3, CC BY 4.0) by the hill-surveying community.

Get food nearby

One place to eat or drink within 10 km of the summit, rated under the Food Hygiene Rating Scheme (Scotland runs its own Food Hygiene Information Scheme, a pass/fail equivalent).

Rated places to eat within 10 km of Cyrniau y Llyn
PlaceTypeRatingDistance
Caffi TanatRestaurant/Cafe/Canteen5 out of 55.5 km · E

Classifications and ratings are the local authority's own and can be coarse — this is a lead, not a guarantee of opening hours or that food is served to non-residents. Follow a name through to the official rating page to check, and confirm before you rely on it.

Food hygiene data from the Food Standards Agency and Food Standards Scotland (Open Government Licence v3.0). Distances and directions computed by OpenFell from the summit.

Which hill this one belongs to

Cyrniau y Llyn is not counted as an independent hill in its own right. In prominence terms it belongs to Foel Cedig (668 m) — the nearest Marilyn you can reach from this summit without first dropping below its key col, 480 m.

Grouping is by prominence alone: a summit belongs to the nearest higher Marilyn it connects to without a deeper intervening col. Over a large massif that can gather hills no one would walk in a single day, and which few would describe as parts of the same mountain — it is a measure of independence, not a suggested route.

Nearest listed peaks

PeakHeightDistance
Rhwng y Ddwynant588 m2.2 km
Cefn Gwyntog614 m3.3 km
Ffordd Gefn539 m3.4 km
Foel Cedig667.5 m4.3 km
Stac Rhos629.8 m4.6 km
Y Groes Fagl659 m4.7 km