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Roundhouse Marine Studies Lab and Aquarium

Dedicated to teaching students & visitors about the oceans, marine life, and the environment.

Located at the end of Manhattan Beach Pier

Manhattan Beach, California

Open to the public free of charge

Suggested donation: $2 per person or $5 per family

Monday-Friday 3pm-sunset

Saturday-Sunday 10am-sunset

(for holiday hours or changes due to weather or classes, please click on the Facebook link above)

Please click the links above to find out more about our programs, including class field trips, volunteer opportunities, summer camp, and more!

Read About This Months Feature Creature - Giant Tube Worm

Latest News

Show your love for the Roundhouse!  Celebrate Valentine's month by loving the ocean and Roundhouse.  You can double your donations impact.  During the month of February, all donations will be matched by a generous donor, up to $2,000!  Click here to find out more and show your love!

February is Deep Sea Month!  Read our new displays to find out more about this harsh habitat and the animals that live there!  We have fun facts, displays, and some fantastic photos from staff member Dr. Dijanna Figueroa.  Don't forget to Like us on Facebook (click link above) for fun posts throughout the month.  You could even win a prize for answering some of our trivia.

Join us for our FREE Sea Story Time every Sunday at 11:30am. This month we will be reading books about the deep ocean and making a cool craft each Sunday. 

Interested in learning more about the Roundhouse, our programs, our mission, and how we spread ocean awareness?  Watch this fantastic video created by Shannon at Avery J Productions.  This video was created for a fundraiser hosted for us by the LA25.