Parishioners gathering under the sun cheer as firefighters spray them with water to cool them down, at the Ucayali Regional Sports Complex where Pope Leo XIV will celebrate mass in Pucallpa, Peru, on November 15, 2026. Pope Leo faced his toughest physical test since undergoing lung cancer surgery, visiting high-altitude Cusco before plunging into the Amazon basin on the final full day of his South America tour. (Photo by MARTIN BERNETTI / AFP via Getty Images)