You do not need a small fortune in gear to walk in Snowdonia.

You do need the few things that keep a good day from turning into a bad one when the weather changes. And in these hills, the weather changes. A warm, still car park can sit below a summit that is ten degrees colder, wet, and blowing hard.

So pack for the mountain you might get, not the one you can see from the road.

Footwear comes first

If you spend money on one thing, spend it here.

You want boots or sturdy trail shoes with a proper grippy sole. Snowdonia paths are rocky, often wet, and slippery on the descent, which is when most slips happen. Smooth-soled trainers are the single most common mistake on the hill.

Worn in, not brand new. A long walk is no place to discover where your boots rub.

Waterproofs, even on a dry forecast

A waterproof jacket is not optional in Wales. Nor are waterproof overtrousers if rain is likely.

Welsh mountain rain arrives sideways and stays, and being wet through high up is how walkers get cold fast. A decent shell packs down small and lives in the bottom of your bag for the day you need it. If you are starting from scratch, it is worth taking a moment to compare waterproof walking jackets on Amazon so you can see the range before you buy.

You do not need the most expensive one on the shelf. You need one that actually keeps the rain out and has a hood.

Warm layers

The summit is colder than the start. Always.

Carry a warm mid-layer, a fleece or similar, even in summer. The trick is layering: add and remove as you warm up on the climb and cool down at the top, so you never get soaked in sweat or chilled at a standstill.

A rough rule for Snowdon: it is often around six to eight degrees colder on the summit than at the car park, before you add the wind.

Food and water

Bring more than you think you will eat.

• Water: a litre at least, more on a warm day.
• Lunch, plus a couple of extra snacks for energy on the climb.
• Something sugary kept in reserve, for the moment someone’s legs go.

A flask of something hot is a small luxury that feels enormous on a cold, damp summit.

A way to find your way

Phones are useful, but signal is patchy in the hills and batteries die in the cold.

Carry a paper map and a compass, and know the basics of using them. A map on your phone is a fine backup, not a sole plan. Many call-outs to Mountain Rescue start with a walker who took a wrong turn in cloud with a dead phone and no map.

The small things that earn their place

None of these weigh much, and each has saved someone a miserable afternoon:

• A small first-aid kit, including blister plasters.
• Hat and gloves, even in summer.
• Sun cream and sunglasses, because cloud does not stop burn.
• A head torch, in case you are slower than planned and the light goes.
• A fully charged phone, carried somewhere warm.

What you can leave at home

You can leave plenty at home, despite what the shops suggest. You do not need walking poles for the main paths unless your knees like them, you do not need a 60-litre rucksack for a day walk, and you do not need the gadget wall.

A 20 to 30 litre pack holds everything above with room to spare.

Pack sensibly, then turn your attention to the day itself. Check the mountain weather before you go, and if you are still deciding your route, our guide to which path up Snowdon suits you will help you match the walk to your group.