Rising proudly above the central valleys of Donegal, Mount Errigal is Donegal’s tallest peak at 751 meters and one of the most iconic mountains in Ireland. Its distinctive pale quartzite summit catches the light in a way that makes it visible for miles, giving it a striking, almost otherworldly presence against the rugged backdrop of the Derryveagh Mountains.

Errigal is a magnet for hikers and adventure seekers. The most popular route is the steep, well-trodden path from the car park at Gartan, which climbs directly to the summit in roughly 2–3 hours. The terrain is challenging, with loose scree near the top, but the effort is richly rewarded: sweeping panoramic views of the surrounding mountains, valleys, and on a clear day, the glinting waters of the Atlantic and Donegal’s coastline.

For photographers and nature lovers, Errigal’s shifting light and cloud patterns make each ascent feel unique. Sunrise and sunset are particularly spectacular, casting dramatic shadows across the jagged peaks and valleys below.

Note: The climb is steep and exposed in places, so sturdy footwear, warm clothing, and a good level of fitness are recommended. Weather on the mountain can change rapidly, so it’s important to check conditions before setting out.