Why bother with a linear walk?

Most of us default to a circular route because it's simple: park the car, walk a loop, drive home. But some of the finest ground in the UK doesn't sit neatly inside a circle. Ridgelines, drovers' roads and coast paths run in one direction, and they reward anyone willing to walk them end to end. A linear walk lets you cross a whole moor or follow a river from source to town without ever retracing your steps. Public transport turns that from a logistical headache into part of the day out.

Start with the timetable, not the map

It feels wrong, but the earliest sensible step is to open a journey planner before you open the map. Find out where the buses and trains actually go, then design the route around those fixed points. Two stations, two villages with a service, or a station at one end and a bus stop at the other — any of these will do.

A few things worth knowing before you commit:

• Sunday and bank holiday services are often drastically reduced, sometimes nonexistent. A route that works beautifully on a Tuesday can be impossible on a Sunday.
• Seasonal and summer-only services — the sort that link a valley car park to a high pass — usually run from around Easter or May to September or October. Check the exact dates.
• School-term variation: some rural routes run extra journeys in term time and very few in the holidays.
• Last buses leave early. In many rural areas the final service of the day is mid-afternoon, and that single fact should shape your whole plan.

Write the times down on paper as well as saving them on your phone. Signal in a steep-sided valley or under a forestry block is a fine way to discover that your only timetable lives in the cloud.

Fit the distance to the daylight

Once you know your arrival and departure times, the arithmetic is honest and simple. Take the daylight you realistically have and subtract a generous hour: thirty minutes for the faff at the start, and thirty for the possibility of a slower-than-expected finish. What's left is your walking window.

Use that to set your distance. As a rough guide, most hillwalkers manage something in the region of 2 to 3 kilometres per hour on rough ground with ascent, and rather more on good lowland paths. Add time for the climbing — an extra minute for every 10 metres of ascent is a decent rule of thumb. A 15-kilometre moorland traverse with 700 metres of up is not a four-hour outing, and pretending otherwise is how people end up running for a bus.

Then check sunrise and sunset for your date and location, and remember that dusk in a valley arrives well before the official sunset time. Woodland and steep-sided glens go dim surprisingly early. If your plan means finishing in the last half hour of usable light, shorten it.

Always have a backup

Buses get cancelled. Trains get delayed. A landslip closes a road, or a driver simply doesn't turn up. None of this is unusual, and none of it needs to ruin your day — provided you planned for it.

Build in at least one escape route:

• A midpoint bail-out: a village, a road-end or a station roughly halfway where you could leave the route and pick up a different service.
• A later alternative: a second bus or train an hour or two after your intended one. Knowing it exists changes a crisis into an inconvenience.
• A phone number for a local taxi firm, written down in advance. In remote areas this is often the only realistic fallback, and it's far easier to arrange in the morning than at dusk.
• Enough food and a head torch, so that a two-hour delay is boring rather than dangerous.

It also helps to have someone at home who knows your route, your intended finish time and what you'll do if you miss the last service.

On the day: stops, signals and small courtesies

Rural stops are not always obvious. Many are request stops, marked with a pole and a faded timetable, and the bus will sail past unless you put out your arm clearly. On some routes you'll need to tell the driver where you want to get off, particularly where there's no formal stop and the bus pulls in wherever it's safe.

Give yourself more time than you think you need. Buses in popular walking areas fill up on fine weekends, and a crowded service may not have room for a group with rucksacks. Board early, sit near the front where you can watch for your stop, and keep your fare or ticket ready. If you're unsure, ask the driver — they usually know exactly which stop you want for a particular path.

Making it a habit

The first linear walk takes an hour of planning. The second takes twenty minutes. Once you've got a feel for how rural timetables behave — sparse, seasonal, front-loaded into the morning — you'll start spotting routes that work, and you'll find yourself planning weekends around a single bus journey rather than a car park.

That's the quiet joy of it: a one-way walk across a whole range, ending at a pub or a station, with no return leg and no car to collect. Just check the last bus before you set off. Then walk, and enjoy it.