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  1. Join us for Marine Science Sunday

    Explore ocean life with our expert educators through captivating photos, science, and stories of amazing marine mammals. These free, interactive programs happen on the 2nd and 4th Sundays in Sausalito. Come visit us, each month brings a new ocean theme!
    Learn more
    Marine Science Sunday
  2. Our Impact Featured in The New York Times

    Two endangered Hawaiian monk seals at our Ke Kai Ola hospital became the first of their kind to receive a bird flu vaccine. This is part of a new effort to protect the animals from a virus that has been ravaging marine mammal populations around the world.
    Read more
    Hawaiian monk seal pup
  3. You Can Save a Life!

    Northern fur seal patients like Brion need your help for a second chance in the wild.
    Donate today
    Northern fur seal Brion

Visit the World’s Largest Marine Mammal Hospital — Book Your Free Tickets Today!

See experts providing life-saving care to patients so they can be released back to the wild. Tickets are free but must be reserved online in advanceHurry, spots fill up fast! 

Ways to Give

Your support makes life-saving work possible. Our patients rely on the generosity of people like you. There are many different ways to make a gift today and help return marine mammals to a healthier ocean home.

Donate Now

Charity Navigator Four Star Charity
Charity Watch logo
Independent Charities Best in America seal
Guidestar Platinum Seal of Transparency 2025
2025 top rated nonprofit award
1 Percent for the Planet

Adopt An Animal

northern fur seal Reina

Reina

Northern Fur Seal — Female
Released
northern elephant seal Shrub with enrichment items including fake kelp and a red buoy

Shrub

Northern Elephant Seal — Female
Released
California sea lion Mayhem

Mayhem

California Sea Lion — Male
Released

Our Impact in the News

Interested in talking to our experts? Contact our media team.