Why the old stories still cling to the coast

Travel a few miles along any British shoreline and you will notice that the folklore never quite lets go of the landscape. That is no accident. For fishing families, the sea was both larder and graveyard, and stories became a way of naming danger, marking safe channels and explaining the unexplainable. A tale about a sea spirit near a particular headland was also a practical warning: reefs there, tide races here, do not swim.

What makes these legends worth travelling for is that they are pinned to real places. You can stand on the exact cliff, walk the exact path, and see the cave or causeway that someone once used to prove the story true. Below are some of the most rewarding, with notes on how to visit them properly.

Selkies and the seal folk of the northern isles

Orkney, Shetland and the Outer Hebrides all share versions of the selkie tale: a seal sheds its skin on land, becomes human, and is trapped when a fisherman hides the skin. Years pass, children are born, and then one day the skin is found and the sea takes its own back. The great ballad of the silkie of Sule Skerry, a lonely rock some forty miles west of Orkney, gives the story its bleakest telling.

The landscapes that inspired it are easy to find. Orkney holds one of the largest grey seal populations in Britain, and you can watch them from clifftop paths on the west coast of Mainland or from the ferry to Rousay. Shetland's voes and geos are equally good.

• Best time: pupping season runs roughly October to December, when beaches may close — take binoculars and keep well back.
• Etiquette: never approach hauled-out seals, and keep dogs on a lead on clifftop paths.
• Pair it with: a visit to a local museum, where the same tale usually appears in a different dialect.

Mermaids, from Zennor to the Isle of Man

Cornwall's most famous mermaid belongs to Zennor. The story tells of a beautiful woman who sang in St Senara's Church and lured a young chorister, Matthew Trewhella, down to the sea at Pendour Cove. The church still holds a carved bench end showing a mermaid holding a comb and mirror, usually dated to the fifteenth or sixteenth century. It is a small, unassuming object, and all the stranger for it.

Walk the South West Coast Path west from St Ives to Zennor and you cover around six miles of granite cliffs and old mine workings, with the cove itself below the village. The Isle of Man has its own mermaid tradition, the ben varrey, and Orkney tells of a mermaid of Deerness whose appearance was read as an omen of storm.

• Getting there: the coast path from St Ives is steep in places; the village is also served by a seasonal bus and has a pub for a post-walk pint.
• Look for: the carved bench end inside the church, and the mermaid figure in the village itself.

Giants, causeways and the same lava flow

The best-travelled legend in these islands concerns the giant Fionn mac Cumhaill, who built a road of stepping stones across the sea to fight a Scottish rival, Benandonner. The geological punchline is that the Giant's Causeway in County Antrim and Fingal's Cave on Staffa, in the Inner Hebrides, are made of identical basalt columns from the same ancient lava flow. The legend did not invent the connection; it explained it.

Both are genuinely spectacular. The Causeway is free to walk on, though parking and the visitor centre are chargeable, and early morning or late afternoon brings far fewer people. Fingal's Cave needs a boat trip, usually from Mull or Iona; landings depend on swell, and trips are often cancelled, so build a spare day into your plans.

Sea spirits, kelpies and the Blue Men

The stretch of water between the Outer Hebrides and the Scottish mainland, known as the Minch, is home to the Blue Men — storm kelpies said to challenge passing captains to a rhyming contest, with the loser's ship going down. It is a wonderfully specific legend for a genuinely treacherous channel.

Orkney has the Sea Mither and Teran, summer and winter spirits locked in seasonal combat, and the nuckelavee, a skinless half-horse horror blamed for livestock disease and drought. In Cornwall, the bucca was a more benign sea spirit, and fishermen were known to leave a small offering of fish for luck. Notice how often the mood of a story matches the mood of the water it belongs to.

Visiting well: practical notes

Treat the landscape as the main attraction and the story as the key to reading it. That means checking tide tables before walking any causeway or coastal route, carrying a paper map as well as a phone, and accepting that Scottish island weather cancels plans. Ferries to Orkney, Shetland, Mull and the Hebrides should be booked well ahead in summer, especially if you are taking a vehicle. Midges are a genuine hazard on still, damp evenings in the west — repellent is not optional.

Churches, museums and small heritage centres often keep short seasonal hours, run by volunteers, so check locally on arrival rather than assuming. Buy something from the village shop or tearoom where you can; it is the most direct way of supporting the communities that have kept these stories alive.

Finally, remember that folklore is not a museum piece. Ask in a pub or a harbour office and you will almost certainly get a local version, with different names and a different ending. That is the real pleasure of island travel: the story is still being told, just out of earshot of the guidebook.