Gray whales exhibit one of the longest annual migrations by animals in the world. Every year, an individual whale may travel more than 10,000 miles on its round-trip journey between the Bering or Chukchi Seas to Mexico. Gray whales start arriving to several quiet lagoons including San Ignacio and Magdalena Bay in Mexico’s Baja Peninsula where they’ll stay until March. The lagoons provide ideal habitat for calving, nursing and mating. In addition to gray whales, winter provides ample opportunities to see humpback whales along the coast, a variety of whales in the Sea of Cortez, and whale sharks (the world’s largest fish, not a whale) near La Paz.