Every winter, grey whales migrate from their Arctic feeding grounds to the warm, sheltered lagoons of Baja California in Mexico to mate and give birth. It is one of the longest migrations of any mammal, around 16,000 to 20,000 km there and back. In some lagoons, “friendly” whales approach small boats, and mothers push their calves towards people, a truly extraordinary encounter.
At a glance
| Best time | February to April (peak for friendly encounters) |
| Getting there | Fly to Loreto, La Paz or San José del Cabo, or drive the Baja peninsula |
| Time needed | 2 to 4 days at a lagoon |
| Big draws | Friendly grey whales, calves, desert landscapes |
| Good for | Families, whale lovers |
The three lagoons
| Lagoon | Access | Notes |
|---|---|---|
| San Ignacio Lagoon | From the town of San Ignacio or by small plane | Famous for friendly whales; remote eco-camps |
| Ojo de Liebre (Scammon’s Lagoon) | Near Guerrero Negro | The largest number of whales |
| Magdalena Bay | From Puerto San Carlos or Puerto López Mateos, near Loreto and La Paz | Easiest to reach from the south |
All three are protected, and whale watching is limited to licensed local boats (pangas) with a set number of boats in the water at once.
Grey whales
- Grey whales were hunted almost to extinction in the lagoons in the 19th century. The eastern North Pacific population has recovered to around 15,000 to 25,000 animals, although it has fluctuated, with unusual die-offs in recent years.
- Friendly behaviour, first reported in the 1970s, is still not fully understood. See our gray whale profile.
What a trip is like
- Pangas carry small groups on trips of about 1.5 to 2 hours.
- Captains stop and wait; whales often approach on their own.
- Touching whales happens when whales initiate contact, but guidelines ask visitors not to reach into their eyes or blowholes.
Other Baja wildlife
- Sea of Cortez: blue whales off Loreto (roughly February to March), sea lions at Los Islotes near La Paz, whale sharks near La Paz (roughly October to April) and mobula rays leaping.
- Humpback whales off Los Cabos in winter.
When to go
- January: whales arrive and give birth.
- February to March: the peak, with many mothers and calves.
- April: calves are bigger and more playful; whales start to leave.
Frequently asked questions
When is the best time for grey whale watching in Baja? February to April, with the most friendly encounters usually in March.
Which lagoon is best? San Ignacio is famous for friendly whales in a remote setting; Magdalena Bay is easiest to reach.
Can I touch the whales? Sometimes whales come close enough, and gentle contact they initiate is allowed under local rules. Never chase or harass them.
Are the lagoons protected? Yes, they are part of the El Vizcaíno Biosphere Reserve (San Ignacio and Ojo de Liebre) and other protected areas.
Related guides
- Where to see whales in North America
- Swimming with whale sharks in Holbox and Isla Mujeres
- Monterey Bay wildlife guide
- Animal profiles: Gray whale, Blue whale, California sea lion
Cover photo: Purecabo, CC BY-SA 4.0, via Wikimedia Commons