Open daily with free admission we are dedicated to teaching students & visitors about the oceans, marine life, and environment. Located at the end of Manhattan Beach Pier.
Learn more about our upcoming renovations: The Harrison Greenberg Foundation Roundhouse Aquarium Beautification Project
We are now open in our temporary facility at the base of the pier near the south side parking lot! We invite you all to visit us and our animals. This will be our home during the renovations, until Summer 2018.
Join us for our 6th Annual 5K Timed family beach run/walk to benefit the Roundhouse Aquarium! All proceeds go to further our mission of ocean and environmental education. The $35 registration fee includes Electronic Timing, Commemorative T-shirt, and Refreshments. There will be an early bird discount this year, so register ASAP. The 1st-3rd place finisher... on 12th May 2018 9:30:am, at North side of the Manhattan Beach Pier