Wales
Walk behind a waterfall's curtain on a farmers' path, in a rainforest gorge in Wales.
There is a waterfall in south Wales you can walk behind. At Sgwd yr Eira, the fall of snow, a rough ledge once used by sheep farmers to cross the river passes under the curtain of water, and the four rivers that made it, the Mellte, Hepste, Pyrddin and Nedd-fechan, have cut a country of gorges so damp and green that the national park calls it a Welsh rainforest.
Waterfall Country sits on the south-west edge of Bannau Brycheiniog, and the classic day is the Four Falls Trail from the Gwaun Hepste car park: wide main paths through the woods, then steep, rocky, slippery spurs down to Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr and, half an hour further, Sgwd yr Eira itself. Every surface is moss and fern, a habitat rarer than tropical rainforest and protected as a Special Area of Conservation, which is why the request to stay on the waymarked paths is not fussiness: the plants are slow and the crowds, around 160,000 visitors a year, have worn the banks. The other request is about the water: people have died here, the pools are cold, deep and fast, and the advice from the agencies that manage the site is never to enter the river. Dinas Rock, a limestone cliff low in the valley, has a short accessible trail to cascades for those who cannot manage the steps, and Penderyn distillery is a few miles away for the evening. Lanes are single-track and car parks fill before midday, so come early or come in the shoulder months, when the falls are fullest anyway.
Solo
Gwaun Hepste at opening, the four falls in order, and the ledge behind Sgwd yr Eira with the sun still low.
Couple
A midweek walk in autumn when the beech turns and the rivers run high, then Penderyn's tasting bar on the way back.
Friends
A whole day on the trail with proper boots and a packed lunch, a group photo behind the curtain, and Penderyn's bar after.
A dram at the tasting bar of Penderyn, the distillery on the southern foothills of the Bannau that brought whisky-making back to Wales in 2000, a short drive from the gorges.
Supper at the Angel Inn in Pontneddfechan, the village pub where the valley bottoms out and the national park's own walking itinerary begins.

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