Cuatrocienegas is an outdoor destination, and the natural landscape is the reason to come. The Pozas — the spring-fed pools — are the headline attraction, but the valley offers more: gypsum dunes, salt flats, desert trails, and one of the most unusual ecosystems on earth. Most visitors come for the day from Monterrey or nearby cities, but spending a night in town lets you be at the pozas at dawn when the light and the silence are at their best.