Sea Lions of Pier 39

The sea lions of Pier 39 are one of San Francisco's most beloved and unusual attractions. What began as a small group of marine mammals seeking refuge has grown into a colony of hundreds, creating a lively, noisy spectacle that draws visitors from around the world. In late 1989, following the Loma Prieta earthquake, a few California sea lions began hauling out on Pier 39's K-Dock. Drawn by a plentiful food supply of herring and anchovies, and a safe environment free from natural predators like orcas and great white sharks, the sea lion population quickly grew. By January 1990, over 150 sea lions had made the pier their home, much to the initial dismay of the marina's boat owners. Eventually, the boat owners relocated, leaving the docks to the ever-growing colony of sea lions. Today, the sea lions of Pier 39 are a major tourist draw, with their numbers fluctuating throughout the year. While many head south to the Channel Islands for breeding season in the summer, a significant number remain year-round. In recent years, the population has surged, with peak numbers reaching over 2,100 in April 2024. The pier's location within Fisherman's Wharf, close to other attractions and easily accessible by public transportation, makes it a convenient and popular destination for families and tourists.