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Your Life-Saving Gift Will Be Matched

Found with his flippers tucked tightly against his body, California sea lion Pockets looked like a sick child with a bellyache.

Pockets was battling a potentially fatal bacterial disease, leptospirosis. We've rescued nearly 500 sea lions affected by this year's intense outbreak.

With your matched gift, you’ll not only help provide the meals and advanced medical care needed to help a sea lion like Pockets recover, but also support our researchers in learning more about this disease.

Match my life-saving gift
California sea lion
an educator talks to guests on the observation deck during an event
  • Events

Join Us for an Upcoming Event

The Marine Mammal Center is open to the public.

Tickets are free but must be reserved online in advance.

Reserve tickets now

Upcoming Events

Humpback whales feeding
Sausalito

Marine Science Sunday: An Ocean Feast at 10:30 a.m., 12:00 p.m. or 2:00 p.m.

Sunday, Nov 23, 2025, at 10:30 am
Learn more

Behind the Scenes at The Marine Mammal Center: Patient Weight Checks

Tuesday, Dec 2, 2025, at 10:00 am
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Behind the Scenes at The Marine Mammal Center: Feeding Our Patients

Tuesday, Dec 2, 2025, at 1:00 pm
Learn more
Ke Kai Ola Open House Series
Ke Kai Ola

Ke Kai Ola Open House Series

Saturday, Dec 6, 2025, at 10:00 am
Learn more
Harbor seal Denali
Sausalito

Marine Science Sunday: Seal and Sea Lion Superstars of 2025 at 10:30 a.m., 12:00 p.m. or 2:00 p.m.

Sunday, Dec 14, 2025, at 10:30 am
Learn more
Harbor seal Denali
Sausalito

Marine Science Sunday: Seal and Sea Lion Superstars of 2025 at 10:30 a.m., 12:00 p.m. or 2:00 p.m.

Sunday, Dec 28, 2025, at 10:30 am
Learn more
Ke Kai Ola Open House Series

Ke Kai Ola Open House Series

December 6 & January 3 | 10am, 11am & 12pm

You’re invited to sea what our Ke Kai Ola hospital in Hawaiʻi is all about during our free monthly Open House Series.

Dive into Hawaiian monk seal conservation efforts and learn more about their rehabilitation journey firsthand. Plus, ocean-inspired keiki crafts and educational tours promise a seal-iously good time for the whole family!

Location: 73-731 Makako Bay Drive, Kailua-Kona, HI
Dates: November 1 & December 6
Tours: 10am, 11am & 12pm
No pre-registration required


Looking for Tours?

We offer a variety of tour options to meet your needs. You'll get an in-depth look at our work and hear stories about the patients in our care. 

Plan your visit

courtyard view of the Sausalito hospital
photo © David Wakely Photography
programs, virtual programs, webinar, behind the scenes, event calendar, upcoming events, science talks