Devil's Bridge

Three stone bridges stacked like a architectural sandwich above the Mynach Falls - that's Devil's Bridge, and it's genuinely odd in the best way. You're looking at centuries of engineering ambition on top of each other, with the oldest dating back to the 12th century and later generations simply building over the top rather than starting fresh. The falls themselves are the real draw, cascading down a gorge that's proper dramatic after heavy rain.

The walk down takes about ten minutes and isn't steep, but it's rocky underfoot so wear decent shoes. You'll get soaked if the spray's coming your way - which it usually is. History buffs will spend a solid hour examining the bridges and pondering why they kept adding layers. Kids tend to lose interest after twenty minutes unless they're waterfall obsessives, though the scrambling about rocks keeps some entertained longer.

It's free to visit, though there's a small car park and a café nearby if you need refreshments. From Aberystwyth it's a straightforward drive inland - about forty minutes. If you're staying at Woodlands Caravan Park or Brynllwyd Glamping, both within spitting distance, you could knock this off as a morning detour before heading to Cardigan Bay or exploring the Vale of Rheidol. Go after rain when the falls are thundering through; in summer drought it's just a trickle and loses its punch completely.