Destination
López Mateos: the town that lives off the gray whale
Every winter, a fishing town on Bahía Magdalena is transformed by the arrival of the gray whale.
A small town with a big season
Puerto Adolfo López Mateos is a fishing town on the coast of Bahía Magdalena, Baja California Sur. For much of the year it’s a quiet town built around fishing; between January and March, the arrival of the gray whale turns it into one of the most visited whale-watching sites in the country.
An internationally recognized lagoon
Bahía Magdalena — together with neighboring Bahía Almejas — forms a lagoon complex recognized as a Wetland of International Importance under the Ramsar Convention, and as a site in the Western Hemisphere Shorebird Reserve Network (WHSRN) since February 2009, covering roughly 187,500 hectares of protected habitat. It hosts 24 shorebird species, including a significant share of the world population of marbled godwit (Limosa fedoa) and snowy plover (Charadrius nivosus), the latter classified as at risk.
Gray whales as a local economic engine
López Mateos’s Festival de la Ballena Gris reached its 31st edition in 2026: around five thousand visitors are expected during the festival days alone, and up to 15,000 tourists may arrive over the whole whale-watching season, with an estimated economic impact of 10 million pesos for the community. That activity supports boat cooperatives, restaurants and families who depend on winter tourism.
Why whales choose this bay
Like other protected lagoons on the Pacific coast of Baja California Sur, Bahía Magdalena offers calm water sheltered from open ocean swell — ideal conditions for female gray whales to give birth and nurse their calves before the trip back to the Arctic.
Visiting it as part of an expedition
Con Gorra’s Gray Whale expedition departs from López Mateos, within this same bay. Getting to know the town — not just the whale — is part of understanding why the watching season matters so much here: an entire economy, built around a few months a year when the sea brings in one of the longest migrations on the planet.
References to keep exploring
- WHSRN · Bahía Magdalena site profile
- Posta BCS · ¿Planeas ver ballenas en BCS? Así será el Festival de la Ballena Gris 2026
Sources accessed on November 8, 2026. Editorial text by Con Gorra Expeditions.
