Pacific gray whales migrate roughly 10,000 miles round-trip each year from Alaska to breed and calve in the warm, shallow lagoons of Baja California — one of the longest migrations of any mammal.
Guerrero Negro's Ojo de Liebre lagoon (mid-peninsula, several hours south of the Ensenada area) is the most accessible major viewing site from the northern border region, with boat tours running roughly January through March/April.
Gray whales in Baja's lagoons are famously curious — mother whales sometimes bring calves right up to tour boats to be touched, a phenomenon unique to this population.
Book tours through licensed operators only (look for permits/eco-tourism certification) — unregulated boats disturb the whales and can be unsafe.
Can't make the drive south? Seasonal gray-whale boat tours also run right out of Ensenada's sportfishing docks (roughly December–April) — a shorter, easier option from the northern border region, though sightings are less guaranteed than at the lagoons themselves.
Operator, duration, and cancellation terms shown before you book — worth checking against the licensing this guide describes.
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