Public Hours:

Monday-Friday 2PM-5PM

Saturday-Sunday 10AM-5PM

Special Hours:

Saturday, March 25, 11:15AM-5:00PM

Tuesday, March 28, 1:30PM-4:30PM

*Note, we change to spring/summer hours April 1st, and will be closing at 7PM*


*Visit our Facebook for updates on our hours.


Roundhouse Aquarium Dolphin Project

The Roundhouse Aquarium Coastal Bottlenose Dolphin Project

This project is still in the beginning phase, but please visit our new Facebook Page for data, photos, videos, and general dolphin info. The staff and volunteers of the Roundhouse Aquarium (operated by Oceanographic Teaching Stations) are excited to show you what we see off the Manhattan Beach pier!

Keep it Green, Keep it Clean

Earth Day Celebration!

Saturday, April 22, 10AM-3PM

Join us at the Roundhouse for our annual Earth Day Celebration! Be sure to register today and enjoy Earth Day activities to take home, Re-Porpoise a shirt into a bag, ocean craft stations, pot a plant, and visit exciting community partner booths!

City of STEM

at State Historic Park near Downtown LA

Saturday, April 1, 9AM-5PM

Join us and many other organizations at City of STEM Free from 9am–5pm, there will be hands-on activities, inspiring demonstrations, expert presentations, crafting, food, and more!

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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