Fiesta de Las Marías Curiosity · Santa María de Guía de Gran Canaria, Gran Canaria - Noroeste, Las Palmas Image of Santa María de Guía de Gran Canaria, not of the place itself. Pilgrimage held on the third weekend of September in memory of an episode from 1811 in which, according to local tradition, the Virgin's intervention spared the crops from a locust plague. 1811 Photo: Ivanhercaz (CC BY-SA 4.0) What to see and do in Santa María de Guía de Gran Canaria