Why Every Footstep Shows on the Coast

Scotland's coastline runs to well over 11,000 miles once you count every island, sea loch and rocky inlet, and a great deal of it is more fragile than it looks. Sand dunes are not permanent features; they are slow structures built by marram grass over decades, and a single eroded gap can widen with every winter storm until a whole dune system starts to blow inland. Machair — the flower-rich grassland found on the west coast and islands — supports corncrakes, lapwings and a dazzling spread of wildflowers, but only where the turf stays intact.

Leave No Trace is not about being precious. It is about keeping these places worth walking on. The good news is that it takes very little effort, and most of it comes down to three habits: carry everything out, keep to ground that can take it, and give wildlife the space it needs.

Take Everything Home, Including the Awkward Bits

Pocket a bag for litter before you set off, and use it. The small stuff matters most because it is the stuff nobody else picks up: bottle tops, ring pulls, cigarette ends, wet wipes, tangles of fishing line, fragments of net and rope. Wet wipes in particular look like food to seabirds and do not break down the way we assume they will.

• Nurdles and microplastic: tiny plastic pellets wash up by the thousand. Collect what you can in a handful of sand, then sieve the sand back through your fingers.
• Fruit peel and apple cores: these can take months to rot in cool coastal air and attract gulls and rats to nest sites.
• Dog waste bags: if you bag it, carry it. A bag left on a fence post is still litter.
• Balloons and lanterns: anything released inland ends up somewhere, and often that somewhere is a beach or a bird's stomach.

While you are at it, avoid adding to the beach rather than just clearing it. Do not build cairns — they mislead other walkers — and leave driftwood, kelp and shells where they lie. Rotting seaweed feeds the sand hoppers that feed the waders, and driftwood is habitat for invertebrates as well as fuel for someone else's fire. A single piece of litter picked up on every walk adds up quickly across a season.

Stick to Durable Ground

Durable surfaces are rock, bare sand below the strandline, shingle that is regularly pounded by waves, and paths that already exist. Everything else is doing a job. Dune slacks, machair, saltmarsh and the vegetated strip just above the tideline are all fragile, and several of them are nesting grounds.

Where a path forks into three muddy braids, take the middle one and stay on it. Cutting a new line widens the scar and starts water running where it should not. On steep grassy slopes above the shore, zig-zag on the established route rather than heading straight up. If you are camping, pitch on ground that is already bare or well-drained, move on after one or two nights, and never camp inside a dune system.

Give Wildlife Room to Breathe

The coast is busy in spring and summer, and most disturbance is accidental rather than malicious. The rule of thumb is simple: if an animal changes what it is doing because of you, you are too close.

• Seals: watch from at least 100 metres, and back off immediately if heads lift or animals start shuffling towards the water. A hauled-out seal losing a pup to the sea is a real cost.
• Cliff birds: fulmars, guillemots and kittiwakes nest on ledges. Keep back from the edge, keep noise down, and never fly a drone near a colony.
• Arctic terns and skuas: they will dive at your head, which means you are inside their nesting zone. Withdraw calmly and quickly.
• Otters: most active at dawn and dusk. Stay low, stay quiet, and never stand between an otter and the water.
• Cetaceans: keep your distance, hold a steady course and speed, and do not chase or circle.

Dogs belong on a lead between April and August, when ground-nesting birds are sitting on cryptic eggs that a nose will find long before your eyes will. Keep them away from livestock and out of the dunes year-round.

Fires, Toilets and Other Awkward Questions

Use a stove rather than lighting a fire. A fire scar on peat or machair can last for years, and gathering wood strips habitat. If you do have a fire in a place where it is permitted, keep it small, use a stove or a raised tray where possible, burn only dead wood already on the ground, and scatter the cold ashes afterwards.

For toilets, the practical answer is to go before you go, or use facilities where they exist. If you genuinely cannot wait, dig a hole about 30 centimetres deep, at least 30 metres from any burn, loch or the sea, and carry out the paper and wipes in a sealed bag. On popular beaches, carrying it out is the better choice every time.

Skills Worth Practising Before You Go

A little preparation removes most of the reasons people cut corners. Read the tide table and know when the water turns. Check the shipping forecast and the local outlook, and accept that coastal weather changes faster than the app suggests. Tell someone your route and your return time. Carry a spare layer, a torch, water and a paper map, because signal on the coast is a bonus, not a plan.

Learn to read the strandline for what it tells you about the last high tide, and learn the difference between a dune slack and a dry hollow before you pitch a tent. These are the small, satisfying skills that make coastal travel feel less like luck and more like competence.

Finally, pass it on gently. If you see someone leaving litter, an offer of a spare bag works better than a lecture. The people who follow you along that shore will never know your name, but they will notice the difference you left behind — which, done properly, is nothing at all.