ALTAR 100K
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The ALTAR 50K & 100K Ultra Marathons on 25 April 2026 are set against the breathtaking backdrop of Beyond the Trees Avondale, in County Wicklow.
Both distances are on looped routes that take runners through the stunning trails and serene forest paths of one of Ireland’s most beautiful mature forests.
The 100km Ultra is 31 loops of a 3.2km course and can be entered solo, or in a relay team of up to 5 members.
The 50km distance begins with a 1.6km starter loop, followed by 15 loops of the 3.2km course.
