There's a particular kind of quiet you only find in a stone building at the head of a glen, with the wind coming off the hill and nobody else for miles. Bothies make that possible — but the quality of your night depends almost entirely on the choices you make before you leave the car.

Start With the Map, Not the Photograph

Bothies photograph beautifully. A shot of a low, dark-roofed cottage against a purple hillside tells you nothing about whether it sits on the right side of a river you cannot cross, or whether the final two kilometres are a path or a bog with ambitions. Begin with the map and the terrain, then let the romance back in.

Ask yourself three questions before you commit. Where is it, exactly, and how do you get to the start of the walk? What is the ground like between you and it? And what happens if you arrive and it is full? A bothy has no booking system, no warden and no key. It is open to whoever gets there. If you are walking in on a Saturday in July, assume you may be sharing a floor with eight strangers, or that you may need to pitch a tent nearby or walk on to a second shelter.

Also check whether the building is currently open. Some are closed for maintenance, and a few sit on estates where access is restricted during the stag stalking or grouse shooting seasons. A quick look at the maintaining body's website, or a word with the estate office, saves a wasted walk.

Work Out the Walk-In Properly

Distance on its own is meaningless. Ten kilometres along a good estate track with a light pack is a pleasant afternoon; six kilometres of tussock, bog and boulder is a different animal altogether. Sit down with a paper map and work out the real picture:

• Total distance and total ascent, not just the straight line.
• River crossings — a ford that's ankle-deep in a dry August can be lethal after a day of rain. Know whether there is a bridge, and where.
• Parking. Where can you legally leave a vehicle overnight, and will it block a gate, a turning circle or a passing place?
• Escape routes. If the weather turns, can you turn back or drop down a different glen?

In winter or in poor visibility, add time. Add more time than you think you need. Most incidents on these walks happen on the way out, when people are tired and pushing to beat the dark.

Expect Shelter, Not Services

Many bothies offer little beyond four walls, a roof and a door that shuts. Some are superb: a fireplace, a sleeping platform, a table, a spade in the corner. Others are essentially a windproof box. Assume the lower standard and be pleasantly surprised.

• Water usually comes from a nearby stream. Treat it, filter it or boil it.
• Toilets do not exist. Carry a trowel, dig a hole at least 30 metres from water and buildings, and bury everything.
• Heating may be an open fire, a small stove or nothing at all. Fuel is rarely provided, and wood found near a popular bothy is usually long gone.
• Sleeping is on a wooden platform or bare boards. No mattresses, no blankets, no pillows.
• Light is whatever you bring. Candles are traditional; a headtorch is more practical.
• Rubbish goes home with you. Every last scrap, including tea bags and the foil from your noodles.

Carry Everything You Need to Be Self-Sufficient

Plan as though the bothy is an empty shell, because it might be. A season-appropriate sleeping bag and a decent mat matter more than almost anything else; a cold, hard floor at 400 metres in February is unforgiving. Take a stove and enough fuel, plus a no-cook backup meal in case the stove fails or the fire is unusable.

Beyond that: water treatment, a first aid kit, spare warm layers, waterproofs, a repair kit for your mat and boots, a power bank, and a paper map and compass with the skill to use them. From May to September, add a midge headnet — it is not a luxury. Add a tick tool year-round, and a bothy bag or group shelter for emergencies. Earplugs are a small kindness to yourself if you end up sharing with a snorer.

Think About Season, Weather and Timing

In northern Scotland, December gives you around six and a half hours of usable daylight. Aim to arrive with at least two hours of light in hand — you want time to find the place, collect water and settle in before dark. Summer offers long evenings but brings midges, bracken and busier shelters.

Check a dedicated mountain weather forecast in the days before you go, and be honest about your own fitness and experience. Winter conditions here mean ice axes, crampons and the judgement to use them. If you would not be comfortable navigating to the door in the dark with a compass, choose a lower, closer bothy for your first trip.

Etiquette, Safety and Leaving It Better

Tell someone where you are going and when you expect to be back. Mobile signal is often absent for the whole walk, so do not rely on a phone call to get you out of trouble. Carry a whistle, know how to raise the alarm, and consider a personal locator beacon for genuinely remote trips.

Inside, the rules are simple. Arrive early, keep your kit tidy, and make room for latecomers rather than colonising the floor. Keep noise down after dark. Do not burn furniture, strip wood from the building or cut living trees. Close and latch the door when you leave, sweep the floor, take your rubbish and someone else's if you can bear it. Write a line in the visitors' book.

Do all that, and the bothy will be there — dry, welcoming and gloriously quiet — for the next walker coming up the glen behind you.