Roundhouse Aquarium

Stop by and experience the wonders of local marine life!

Located in beautiful downtown Manhattan Beach, California, the Roundhouse has undergone a recent revitalization through a $4 million capital project spearheaded by the Harrison Greenberg Foundation. The new Roundhouse Aquarium educates and inspires more than 300,000 visitors every year. It is managed and operated by the nonprofit oceanic and environmental organization Oceanographic Teaching Stations, Inc. (OTS), whose mission is to connect and engage visitors and students to the oceans through hands-on interactive experiences with marine life and habitats of southern California, and to inspire them to become good stewards of our environment.   

OTS’ programs at the Roundhouse Aquarium promote the study of the oceans, tidelands and beaches of Southern California through a wide slate of science-based and standards-aligned education programs with its immersive and engaging exhibits of a diverse array of marine life.  More than 100 marine animals from Southern California’s waters live at the aquarium, many are native to its local waters in the Santa Monica Bay. Notable wildlife include moon jellies, sharks, octopus, sheephead, moray eels, lobsters, and more – as well as a touch tank with sea stars, sea cucumbers, sea urchins and sea snails.

The aquarium prides itself on being family oriented. It’s a great place for kids to take their parents!

Public Hours

April through September:
Mon-Fri: 2PM – 7PM
Sat-Sun 10AM – 7PM

October through March:
Mon-Fri: 2PM – 5PM
Sat-Sun: 10AM – 5PM

Holiday Hours

Holiday hours may vary. Check our Facebook page for any updates.

December 24: 10AM-2PM
December 25: CLOSED
December 31: 10AM-5PM
January 1: 10AM-5PM

Non-public hours are dedicated to teaching classes and maintenance. The hours are subject to change due to weather, pier closures, and private events. Please “like” us on Facebook for up to date changes on our hours or activities.


The Roundhouse is FREE! However, your donations allow us to operate this wonderful facility. Donations of $2.00 per person and $5.00 per family are suggested.


Parking available near the pier.

Manhattan Beach Parking Info.

Pin It on Pinterest

Skip to content