What is the hardest Munro?

The Inaccessible Pinnacle (In Pinn) on Skye is universally considered the hardest Munro. It's the only one requiring actual rock climbing — a Moderate-graded ridge climb followed by an abseil descent. Most baggers hire a guide or rope up with experienced friends.

Do you need to rock climb to complete the Munros?

Yes — one Munro, the Inaccessible Pinnacle, involves genuine rock climbing (graded Moderate) and an abseil. Several others on the Skye Cuillin involve serious scrambling where most people want a rope for confidence.

Can beginners climb Munros on Skye?

Bruach na Frithe is the most straightforward Skye Munro and a reasonable target for a fit walker in good weather. The rest of the Cuillin ridge involves scrambling, route-finding on bare gabbro and real exposure — most baggers save Skye for late in their round or hire a guide.

The Hardest Munros: The In Pinn, the Cuillin and Scotland's Toughest Summits

Most of the 282 Munros are walks — long ones, steep ones, boggy ones, but walks. A handful are something else entirely. These are the Munros that baggers save for last, train for, and talk about for years afterwards.

The Inaccessible Pinnacle — the hardest Munro of all

The Inaccessible Pinnacle (986m) is a blade of gabbro jutting from the ridge of Sgurr Dearg on Skye, and the only Munro that requires actual rock climbing. The standard route up the east ridge is graded Moderate — easy by climbing standards, unthinkable by walking ones — with what the classic description calls “a drop on one side and an even bigger one on the other”. The descent is by abseil.

Sir Hugh Munro himself never climbed it, which is why tradition treats the In Pinn as the crux of every round. Most baggers hire a mountain guide for the day — worth every penny.

The rest of the Skye Cuillin

The Black Cuillin is Britain’s most alpine ridge, and its eleven other Munros make up most of the “hard list”:

Sgurr Alasdair (992m) — the highest peak on Skye, reached via the Great Stone Chute or scrambling lines.
Sgurr Mhic Choinnich (948m) — exposed ledges and the famous “Collie’s Ledge” traverse.
Am Basteir (934m) — the “executioner”, with its awkward “bad step”.
Sgurr nan Gillean (964m) — the classic pointed summit, a sustained scramble by its easiest route.
Bruach na Frithe (958m) — the “easy” one, and the best first taste of the Cuillin.

Bare rock, magnetic gabbro that makes compasses lie, and sea-level starts: Skye days are long, technical and utterly unforgettable.

Mainland scrambles

Aonach Eagach, Glen Coe — the narrowest ridge on the mainland links Meall Dearg and Sgorr nam Fiannaidh. Once you start the pinnacled section there’s no easy way off.
An Teallach — the great Torridonian castle of the northwest. Its two Munros, Bidein a’ Ghlas Thuill and Sgurr Fiona, can be reached by walkers’ paths, but the full traverse over the Corrag Bhuidhe pinnacles is one of Britain’s finest scrambles.
Liathach — Torridon’s wall of a mountain: two Munros linked by the exposed Am Fasarinen pinnacles (with a path that sneaks below for the sensible).
The Saddle, Glen Shiel — best climbed by the Forcan Ridge, a brilliant, airy scramble that’s entirely optional but shouldn’t be.

Hard for other reasons

Difficulty isn’t only about scrambling:

The Fisherfield Six (five Munros since the 2011 re-survey) — the remotest group in Scotland. Most parties backpack in and camp; A’ Mhaighdean is often called the most remote Munro of all.
Ben More on Mull and Ben Hope in the far north — not technical, but the logistics (a ferry, a very long drive) mean they guard many people’s final tick.
Ben Macdui and the Cairngorm plateau — easy angles, deadly-serious navigation in mist or winter storms.

How to prepare

Build up gradually — get mileage on ordinary Munros first (start with our beginner’s guide).
Learn to scramble — practise on graded scrambles below 3,000ft before committing to Aonach Eagach or An Teallach.
Pick your weather ruthlessly — dry rock and light winds transform these days.
Consider a guide for Skye — many baggers do the whole Cuillin in 2–3 guided days and rate them the best of their round.

Track them all — the terrifying and the gentle alike — with the 282 app, and see exactly how many of the hard ones stand between you and compleation. Browse the full list of 282 to size up the challenge.