The Tarawera Ultramarathon is a UTMB World Series event that winds through the geothermal heart of New Zealand's North Island. Starting at the shores of Lake Tarawera, runners traverse ancient podocarp forests, pass steaming volcanic vents, and skirt the edges of crater lakes formed by the devastating 1886 Mount Tarawera eruption. The race's mix of smooth single-track, technical volcanic terrain, and dramatic thermal landscapes makes it one of the most unique ultras in the world.