Thank you for signing up to our email!

Now, before you leave, do you want to make a seal's day?

Basic Membership


Basic Membership: It's the start of a worthwhile relationship!

marine mammal center, california sea lion, pup

Basic Membership: From just $25 per year! 

Start learning more about The Marine Mammal Center, what we do to help marine mammals, and how the health of the oceans affects us all. Basic Membership entitles one cardholder and one guest access to a variety of engaging and insightful benefits each time you visit the Center and our website.

Your Benefits Include:

  • Invitations to Member-Only events throughout the year, such as Member-Only Nights from April through September.
  • Discounted Docent-led Tour for you and a guest.
  • Monthly e-newsletter.
  • 10% discount on purchases in our Sausalito Gift Shop and our online store.
  • And best of all, the satisfaction that you're helping give marine mammals a second chance at life!

Join or renew by simply clicking the buttons below and completing the online donation form. And think about becoming a monthly member: for about 33 cents a day, or only $5 a month, you could buy 60 pounds of fish to feed some very hungry pups. For about 50 cents a day, or $16 a month, you could provide life-saving medical care, such as an x-ray, endoscopy procedure or bullet removal, for an injured seal or sea lion.

For general membership inquiries, contact our membership team at or call (415) 289-7338.


Ke Kai Ola

Learn about our Hawaiian monk seal hospital!

Pearl and Hermes
40 Years!

Thank you to PG&E, our presenting sponsor!

Read More!
40th Anniversary Celebration
Camp Out!

Spend the night at The Marine Mammal Center!

Sign up!
Stargazing in the Night Sky