The Snowdon Llanberis Skyline Challenge

🏔️ Option 2: The Full Llanberis Skyline Challenge

The Monster Route — Two Ranges, Ten Summits, One Huge Day or two

The ultimate version of the skyline: Snowdon plus a full traverse of the Glyderau’s highest peaks — a true epic for experienced mountain adventurers.

Route Overview

The first section is identical to the Half Route:

• Moel Eilio – 726 m

• Foel Gron – 629 m

• Foel Goch – 605 m

• Moel Cynghorion – 674 m

• Snowdon / Yr Wyddfa – 1,085 m

But instead of descending into Llanberis via the Llanberis Path, we take on a huge second stage.

Descent Route

We descend from Snowdon via the Pyg Track into Pen-y-Pass, crossing between the two major ranges. If doing the route over two days, we get the bus back down to Llanberis from here and the bus back up the following morning.

The Glyderau Summits

6️⃣ Glyder Fawr — 1,001 m
A steep, rough ascent to one of Snowdonia’s most iconic summits.

7️⃣ Y Garn — 947 m
A classic ridge summit with huge views down to Llyn Idwal.

8️⃣ Foel-goch — 831 m
A broad grassy top between major peaks.

9️⃣ Mynydd Perfedd — 812 m
A quieter top with sweeping views towards Bethesda and back to Snowdon.

🔟 Elidir Fawr — 923 m
The final major summit — a dramatic finish before descending its long, stony ridge back into Llanberis.

Finishing Descent

Through the parts of the old Dinorwic Quarry, We return directly into Llanberis, completing the full double-range skyline.

💪 Who is the Full Route For?

Ideal for:

• Experienced hillwalkers

• Trail runners and ultra-distance athletes

• Charity challenge teams wanting something iconic

• Anyone seeking a massive one-day challenge in Snowdonia

Expect:

• Big ascent

• Long distances

• Mixed terrain

• One of the most rewarding mountain days available anywhere in the UK