The most interesting feature of the Pier 39 is sea lions rookery.
These wonderful animals have always lived in the San Francisco Bay, but at Pier 39, they first appeared in September 1989. Until now, scientists could not figure out the exact cause of their migration, but they created the most comfortable conditions for them. Previously, the number of seals was over 1500! Now they are much smaller, but those who have stayed continue to delight the curious tourists.
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