Activities

A Local's Guide to UK Coastal Paths: How to Plan a Day Walk with Tide Times

September 29, 2026

The best coastal walks are not planned on a map alone. A headland that looks straightforward on a 1:25,000 might have a beach section that vanishes at mid-tide, a ferry that stopped running in September, or a bus that turns up twice on a Sunday.

Ask anyone who has spent years on the South West Coast Path or the Pembrokeshire Coast Path and they will say roughly the same thing: the tide decides where you can go, the bus decides where you finish, and the weather decides how much you enjoy it. So plan in that order. Tide, transport, weather, escape routes. It takes ten minutes at the kitchen table and saves the sort of afternoon that ends with a phone call to a taxi firm from a lay-by.

Start with the tide, not the map

Find the tide table for the nearest standard port, usually a harbour town a few miles along the coast rather than the exact bay you are walking. Harbour offices, the national trail websites and the main weather services publish them, and most are free.

Two numbers matter: when low water falls, and how big the range is that day. Low water sits in the middle of your window for any beach walking, and the range tells you how long that window lasts.

Springs, neaps and the size of the drop

Spring tides have nothing to do with the season. They arrive around the new and full moon and bring the biggest range of the month; neap tides, roughly a week later, bring the smallest. The consequence is practical rather than theoretical: a beach that stays walkable for four hours on a neap tide may only be clear for two on a spring.

As a rule of thumb, allow two hours either side of low water for any beach stretch, and give yourself less if the tide is spring and the beach is narrow or backed by cliffs. If a section looks tight on paper, it is tight on the day.

Crossings that only work at low water

Some of the best-known coastal routes cross water rather than walk beside it. The causeway to St Michael's Mount, the tidal paths across the Erme and Avon estuaries in south Devon, and the road across to Holy Island at Lindisfarne all have published safe crossing windows, and they are not generous. If your route depends on one of them, treat that crossing time as the fixed point and build the rest of the day around it. Never judge a causeway by eye.

Sort the buses before you commit to a route

Linear walks beat circular ones on the coast — the best scenery is along the edge, not back through the fields — and a bus at one end makes them easy. The details, though, need checking.

Use more than one source. Map apps are convenient but can be out of date on rural services. Cross-check with Traveline, the operator's own timetable page, or the local council.
Find the last bus before the first. Note exactly where it stops; some services pull up on a main road a mile inland from the path.
Check the day of the week. Sunday and bank holiday timetables are often radically different, and many seasonal services finish in September or October.
Watch for demand-responsive services. Some rural areas run buses that must be booked by phone the day before.
Screenshot everything. Signal on a clifftop is patchy, and a laminated board at the stop is a poor substitute when you are tired.

Keep a local taxi number in your phone as a back-up. It is the cheapest insurance you will ever buy for a day out.

Read a coastal forecast differently

Rain is the least interesting part of a coastal forecast. Wind matters more. A gusty day on an exposed clifftop is hard work and can unbalance you on steps or loose gravel, so look at gust speed and direction rather than the headline "light showers". A strong onshore wind also throws spray across low paths and makes beach walking miserable.

Then come the coastal specials. Sea fog can roll in on an otherwise fine afternoon and turn a headland into a white room. Shorter autumn daylight catches out people repeating a walk they did comfortably in July. Swell is worth checking if your route runs along a beach beneath cliffs. And use the forecast for the nearest coastal town, not the inland town you set off from; the two frequently disagree.

Plan escape routes before you need them

Mark every place you could leave the path in a hurry: a lane running inland, a farm track, a village with a bus stop and a pub, a set of cliff steps. Aim for at least one bail-out point around the middle of the walk, and know where it is without squinting at a screen.

While you are there, check for closures. Cliff falls and landslips cause temporary diversions on several national trails, some sections close in spring and summer for nesting birds, and a few paths cross land that is only open on certain days — the military ranges on the Purbeck coast being the best-known example. Trail websites and council notices list these. A map bought three years ago will not.

A ten-minute planning routine

Note high and low water, plus the day's tidal range, at the nearest standard port.
List every point where the route meets the water — beaches, causeways, estuary crossings — and give each one a time window.
Choose your direction of travel so tidal sections fall at the right time of day and you finish near a bus stop.
Confirm bus times with the operator and write down the last service.
Check the coastal forecast, gusts first, and note sunset.
Mark escape routes and save a taxi number.
Tell someone your route and expected finish time. Pack a head torch and a printed map or guidebook section, even if you plan to use an app.