Every year in the weeks after Easter, in the week before Corpus Christi, tens of thousands of pilgrims climb from Cusco toward the Sinakara valley beneath the glaciers of Ausangate, in the southeastern Peruvian Andes. Their destination is a small chapel built around a rock bearing a painted image of Christ, venerated as the Lord of Qoyllur Rit'i, star snow in Quechua, for the mountain ice that surrounds the shrine.
The pilgrims travel as nations, organized by the villages and provinces they come from, each bringing its own dancers, musicians and dress. Among the most recognized figures are the ukukus, dancers masked as half human, half bear, who traditionally climbed the glacier to cut blocks of ice and carry them home as blessed water, a practice curtailed in recent years as the glacier has retreated. Roughly a hundred distinct dances are performed across the gathering, alongside all night vigils and a return journey timed to reach Cusco for Corpus Christi itself.
What draws so many people is the pilgrimage's double identity. Its central image and its calendar are Catholic, tied to the Easter cycle and to a devotional legend of an apparition on the mountain. Its dancers, its masks and its reverence for the surrounding peaks draw on Andean tradition, in which mountains, or apus, are themselves regarded as living presences. Rather than replacing one with the other, the festival has held both together for generations, drawing communities from different altitudes into a single shared gathering.
UNESCO inscribed the pilgrimage on the Representative List of the Intangible Cultural Heritage of Humanity in 2011, recognizing it as a living convergence rather than a historical curiosity, a distinction that matters as the glacier it depends on continues to shrink.