Mermaid Cave

The cave entrance sits low against the cliff face near Bushmills, accessible only at low tide - which already tells you this isn't your average tourist trap. You scramble down the rocky beach and duck through the opening to find a decent-sized chamber with a natural pool at its base, the walls streaked with minerals that catch what little light filters in. The real draw is the legend attached to it: a mermaid supposedly made this her home, and locals have spun tales about her for centuries. It's atmospheric rather than grandiose, and honestly, the journey matters more than the destination here.

Walkers and geology types will get the most from it - you need proper footwear, a tide table, and a bit of scrambling fitness. Families with young kids might find it underwhelming once they realise there's no actual mermaid, though the rock pooling on the way back can keep them occupied. Allow an hour including the approach and exploration, though you could spend longer poking about the surrounding shoreline.

The logistics are straightforward: it's free, no visitor centre, no facilities. The catch is tide timing - check before you go or you'll be stuck. It works brilliantly as part of a longer Causeway Coast walk, and Causeway Country Pods nearby makes a solid base if you want to string together a few coastal explorations. Worth the detour if you're already in the area, less so if it's your sole reason to visit Bushmills.