Public Hours:

Monday-Friday 2PM-5PM

Saturday-Sunday 10AM-5PM

Special Hours:

Wednesday, October 11th OPEN from 1PM-4:30PM

Wednesday, October 18th OPEN from 2PM-4:30PM 

*Visit our Facebook for rapid updates on our hours.


Plan your visit/FAQ


Roundhouse Aquarium Dolphin Project

International Coastal Cleanup Day, September 23, 2023

Join us for the biggest cleanup in the world! Save the date for September 23, 9AM-12PM.  Meet up at Manhattan Beach Pier. Pre-register and sign the virtual waiver.

3rd Annual SUNsational Sandcastle Contest! 

Thanks to everyone who participated this year!  Congratulations to our winners.

Starry Night with the Sharks!

Register Today!

Enjoy a parents’ night out while your kids become shark experts at the Roundhouse Aquarium! Dinner, snacks, games, and fun included.

The Roundhouse Aquarium is committed to providing ocean science education for all.


The Board of Directors for the Oceanographic Teaching Stations, Inc. (OTS) is proud of its long history of providing education equity for underserved children. Many of the young students who have attended our marine science classes are from disadvantaged or low-income families, or attend Title I schools. These marine science classes teach the children about the sea animals that live off our coast and the importance of protecting their environment from pollution. 

Since providing education equity for underserved children has historically been a priority for OTS, OTS hereby formally adopts a policy of providing educational equity for underserved children when providing free marine science classes at either the Roundhouse Aquarium or at schools. These OTS onsite and outreach classes provide access to underserved children and Title I schools that greatly benefit these children in their understanding of marine science.



Fun for students of all ages!


Discover the wonders of the ocean.


Immerse and experience the ocean.


Connect closer and inspire.

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