Towering above all else in the Derryveagh Mountains, Errigal is one of Ireland's most photogenic mountains. From this direction, it looks every bit the classic peak, its scree slopes tumbling from an arrowed quartzite summit. The ascent options from this direction are as exciting as its appearance would suggest. The North Ridge is a superb grade one scramble, while the neighbouring Tower Ridge is a steeper, more committing grade three scramble.