Kayaks at Quilotoa, a water-filled caldera and the most western volcano in the Ecuadorian Andes, Ecuador, South America

A woman started at Quilotoa, a water-filled caldera and the most western volcano in the Ecuadorian Andes, Ecuador, South America

Panorama of Quilotoa, a water-filled caldera and the most western volcano in the Ecuadorian Andes, Ecuador, South America

Quilotoa, a water-filled caldera and the most western volcano in the Ecuadorian Andes, Ecuador, South America

Panorama of Quilotoa, a water-filled caldera and the most western volcano in the Ecuadorian Andes, Ecuador, South America

Lago Quilotoa, caldera lake in extinct volcano in central highlands of Andes, Ecuador, South America

Lake Quilotoa at sunset, Cotopaxi Province, Ecuador, South America

Lake Quilotoa, Cotopaxi Province, Ecuador, South America

Lake Quilotoa, Cotopaxi Province, Ecuador, South America

Crater lake Quilotoa near Zumbahua, Ecuador, South America

Mules on the way to the lagoon, Laguna Quilotoa, Cotopaxi Province, Ecuador, South America

Kayak tour on lake-filled Quilotoa caldera, Laguna Quilotoa, Cotopaxi Province, Ecuador, South America