Only 20 years ago this species was so rare, that little hope was held that it could ever recover. Today the species appears out of danger, thanks to international cooperation among the whaling nations which stopped the slaughter of this truly unique whale. Now it is not at all unusual to see between 50 and 75 whales a day during the peak of the migration. One of the finest locations for viewing this migration is the Cabrillo National Monument which commands an almost aerial view of the coastline. Here individual whales can be watched for at least 1 hour, as they hove into view from the north and at last recede to the southeast along the Silver Strand. The first and only public observatory for whales was established at the monument in 1951. The naturalist on duty not only keeps a plot of the whales passing by, but also helps visitors find their first whale. The observatory is one of the most popular wintertime attractions in southern California. With so many pairs of eyes on hand, it is not surprising that the count of whales is remarkably complete. There is no other marine animal which can be seen with such certainty in its natural element. [Illustration: Migrating gray whales off Point Loma, Calif. _Photograph by Burky Reeves._] [Illustration: Migrating gray whale passing San Diego, Calif. _Courtesy Scripps Institute of Oceanography._] Migrating animals have always fascinated man who considered them harbingers of the seasons. Man continues to puzzle over the mysteries of how these animals are able to navigate so precisely and how they are able to maintain such timetables. Whereas other migrating animals pass broadly through an area, the California gray whales, at least on the final part of the route, are passing along just outside the surf zone, virtually single file! It is hard to realize that 3 months earlier these whales started off from their summer quarters in the Arctic Ocean and the Bering Sea, as well as along the shore of Siberia and Kamchatka en route to their winter quarters in the lagoons and harbors along the outer coast of Lower California. Between these two areas lie 6,000 miles of seemingly trackless ocean. With the advent of spring the whales must be on their way back again to their summer grounds.