How far is the Ogwen | Yr Helgi Du?

The Ogwen | Yr Helgi Du offers 3 distances: 15K (9.3 miles), 25K (15.5 miles), 40K (24.9 miles).

How much climbing is in the Ogwen | Yr Helgi Du?

The 25K has 1,123 m of ascent. The 40K has 2,363 m of ascent. No figure yet for the 15K.

How hard is the Ogwen | Yr Helgi Du?

25K: Very Hard. 40K: Expert. TRP grades come from distance and climb measured off the course file, not from the organiser. The 15K isn't graded yet.

Is the Ogwen | Yr Helgi Du course marked?

Yes, the course is marked. Navigation skills are not required.

Always Aim High Events Ogwen | Yr Helgi Du

Plas y Brenin, Capel Curig, ConwySat, 24 Jul 2027

Fifteen, twenty-five or forty kilometres over the Glyderau and Carneddau from Plas y Brenin, with Grade 1 scrambling on the longest.

Distance	Ascent	Per km
40K	2,363 m	59 m
25K	1,123 m	46 m
15K	—	—

mountainscrambleMarked course

Nobody has reviewed this one yet

No reviews of the Ogwen | Yr Helgi Du, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.

Ran it? Write the first review

Running it soon? Connect Strava and we will ask you about it the day you finish, so you do not have to remember to come back.

Pick your distance

Loading map…

Start time not confirmed yet — check with the organiser.

Partner · affiliate policy

Train for it: routes near the start

Routes starting within 20 km of Plas y Brenin, Capel Curig, Conwy, nearest first. Each one has a free GPX file and a TRP grade, so you can rehearse the ground before race day.

EXPERT

Yr Wyddfa via Miners' Track, Pyg Track and Crib Goch

12.0km · 710m climb · Loop · 8.0km away

Most people treat the Miners' and Pyg Tracks as a straightforward there-and-back pairing, but this GPX shows the loop actually crossing Crib Goch, which changes the entire character of the day.

EXPERT

Snowdon, Grib Goch, Glyder Fawr, Y Garn & Elidir Fawr from Llanberis Trail Running Route

29.1km · 2,306m climb · Loop · 15km away

Crib Goch is one of the most exposed ridges in Britain, and this route puts it in the middle of a big mountain day rather than as the whole objective, so you get the scramble and a proper crossing into the Glyderau either side of it.

Checked Jul 2026

VERY HARD

Yr Wyddfa via Llanberis Path

16.2km · 959m climb · Out & back · 15km away

It's the most runnable line to the summit of Yr Wyddfa, following the rack railway most of the way up, so you can move fast on genuinely good underfoot conditions rather than picking through rock.

All Eryri (Snowdonia) routes →

How to enter

Sat, 24 Jul 2027 · Entries open

Enter on their website ↗

Entries are handled by Always Aim High, not by us. We take nothing for sending you there.

Add to your calendar · as an all-day entry, until the start time is confirmed

Common questions

: The Ogwen | Yr Helgi Du offers 3 distances: 15K (9.3 miles), 25K (15.5 miles), 40K (24.9 miles).
: The 25K has 1,123 m of ascent. The 40K has 2,363 m of ascent. No figure yet for the 15K.
: 25K: Very Hard. 40K: Expert. TRP grades come from distance and climb measured off the course file, not from the organiser. The 15K isn't graded yet.
: Yes, the course is marked. Navigation skills are not required.
: We don't hold a compulsory kit list for the Ogwen | Yr Helgi Du. Always Aim High Events confirm mandatory kit in their race information, usually in the final instructions.
: We don't hold published time limits for the Ogwen | Yr Helgi Du. If Always Aim High Events set cut-offs, they'll be in the race information.
: We don't hold a checkpoint list for the Ogwen | Yr Helgi Du. What's on the table varies a lot between races, so check the Always Aim High Events race information rather than turning up expecting food.
: Not yet — we don't hold a course file for the Ogwen | Yr Helgi Du. Some organisers only send the GPX to entrants. If we get one, it goes up free, with no sign-up.
: Sat, 24 Jul 2027. Entries open.