A trip to Baja California in late autumn through spring offers a chance to swim with the world’s largest fish: whale sharks. These animals can grow to the size of a school bus, but, they are harmless to humans. Here’s what you need to know to plan an unforgettable, eco-friendly encounter with these gentle giants.
Whale sharks migrate through Baja California Sur and the Sea of Cortez from October to April, often congregating in the sheltered and nutrient-rich waters of the Bay of La Paz to feed on abundant plankton and krill. Most peninsula whale shark tours depart from La Paz, Cabo San Lucas, or San José del Cabo.
Organized tours ensure a safe and responsible way to swim with the whale sharks, plus the best chance of sightings thanks to expert crews and tracking systems. After catching a catamaran or other boat out to sea, you’ll wait for your captain’s signal to jump in once a whale shark is spotted nearby. Because the animals tend to feed in shallow waters, it’s possible for even novice snorkelers to experience the thrill of observing them beneath the surface.