Sea lions in La Paz

The Los Islotes sea lion colony is located at the northern tip of the islands and is used year round by the sea lions. These small rocky islands are a resting area where they can sun themselves, sleep and relax when they are not hunting. Mothers give birth to their pups here in the spring/summer and mating typically happens a few weeks afterwards. Los Islotes is also a superb dive site with many species of fish and birds to observe and a large canyon like swim-through. Both divers and snorkelers can enjoy this beautiful area. Sea lions are also often seen at other dive sites and while we are in transit and are just as easy to interact with.

If you've never snorkeled or dove with sea lions you are in for a treat, younger sea lions are very playful and it is common for them to tug on your fins, swim in crazy circles around you and even bark at you underwater. The larger males however, are a little lazier as you can see in this video clip.

Day trips to the sea lion colony are available year round, for both snorkeling and scuba diving activities. Check out our snorkel tours page or diving tours page for more information.

The California Sea Lion Zalophus californianus

California sea lions are known for their intelligence, playfulness, and noisy barking. Their color ranges from chocolate brown in males to a lighter, golden brown in females. Males reach 850 pounds (390 kg) and seven feet (2.1 m) in length. Females grow to 220 pounds (110 kg) and up to six feet (1.8 m) in length. They have a "dog-like" face, and at around five years of age, males develop a bony bump on top of their skull called a sagittal crest. The top of a male's head often gets lighter in color with age. These members of the otariid, or walking seal, family have external ear flaps and large flippers that they use to "walk" on land. The trained "seals" in zoos and aquariums are usually California sea lions.


California sea lions are found from Vancouver Island, British Columbia to the southern tip of Baja California in Mexico. They breed mainly on offshore islands, ranging from southern California's Channel Islands south to Mexico, although a few pups have been born on Año Nuevo and the Farallon Islands in central California. There is a distinct population of California sea lions at the Galapagos Islands. A third population in the Sea of Japan became extinct, probably during World War II.

Most pups are born in June or July and weigh 13 to 20 pounds (6 to 9 kg). They nurse for at least five to six months and sometimes over a year. Mothers recognize pups on crowded rookeries through smell and vocalizations. Pups also learn to recognize the smell and vocalizations of their mothers. Breeding takes place a few weeks after birth. Males patrol territories and bark almost continuously during the breeding season.


California sea lions are very social animals, and groups often rest closely packed together at favored haul-out sites on land or float together on the ocean's surface in "rafts." They are sometimes seen "porpoising," or jumping out of the water, presumably to speed up their swimming. Sea lions have also been seen "surfing" breaking waves. California sea lions are opportunistic eaters, feeding on squid, octopus, herring, rockfish, mackerel, and small sharks. In turn, sea lions are preyed upon by Orcas (killer whales) and great white sharks (don't worry; there are no great whites in La Paz).


Their population is growing steadily, and California sea lions can be seen in many coastal spots such as the Monterey Coast Guard jetty and PIER 39 in San Francisco. The current population is approximately 238,000.


More in this category: Fish Life in La Paz »