Terra de Gigantes is an endurance ultra trail race taking place from January 14 to 17, 2027, in Portugal. The race covers a challenging distance of 303.8 km with 10,815 meters of positive elevation gain, starting at Torre in Serra da Estrela and finishing at Nazaré.

This non-stop race requires GPS navigation and semi-self-sufficiency, with a time limit of 74 hours. Participation is open to athletes aged 20 and above with prior experience in long-distance races of 100 km or more and GPS navigation skills. The course traverses diverse landscapes including mountain trails, historical villages, and coastal areas, offering a unique and demanding adventure.

The event features support bases along the route for rest and resupply, strict rules on external assistance, and a strong emphasis on individual endurance and responsibility. It culminates in a celebration ceremony in Nazaré, honoring all finishers and top performers.