The best hiking routes in County Mayo

County Mayo offers a stark choice between the exposed, waterlogged interior and the rugged, indented Atlantic coastline. In the vast boglands of Wild Nephin National Park, the terrain is dominated by deep blanket peat, heather, and quartzite ridges. Walking here means navigating soft, spongy ground underfoot, though some key routes utilize gravel tracks and forestry roads. It is a low-lying, sprawling landscape where the lack of tree cover is a direct result of ancient woodland clearance and the acidic, wet soil that prevents deep root growth.

For those who prefer firmer footing and defined coastal features, the cliffs and sandy beaches of the Mayo coast present a completely different character. The paths along the Mullet Peninsula or around Clew Bay are shaped by marine erosion, offering walks over coastal machair grassland and hard sand. Unlike the interior, these coastal areas are defined by tidal patterns and maritime farming, where low stone walls partition the fields right to the water's edge.

This county is not a place for high, jagged alpine peaks or deep forested gorges; its hills are rounded, weathered mounds of sandstone and schist. In October, the purple moor grass in Wild Nephin turns a deep bronze, marking the transition to winter. While well-known coastal trailheads can be busier with visitors, the interior bog roads often remain quiet, offering a solitary walking experience on a massive scale.