n November the southward migration is underway for most gray whales. As ice forms on their feeding waters, they will swim 24 hours a day to their winter home in the warm lagoons of Mexico's Baja Peninsula. The journey is more than 5,000 miles. The whales may travel so close to the coast that people can see them. Whale watchers look for whale spouts, or blows. These spouts are made by a whale's exhale.