The diving season in Guadalupe is from July to November. During this period huge numbers of great whites migrate to the island to hunt elephant seals. There are two distinct periods within the season as well. In the height of summer, from July to August is the best time to go to Guadalupe to see groups of juvenile male great whites. These younger males are very active and it is likely that divers will see them in greater numbers. At the end of the summer, is the best time to see the huge females which arrive around October. These giants are a spectacular sight, they can be up to 18 ft. (5.5 meters) long and normally travel and hunt alone.