Street Address
Manhattan Beach Pier
Manhattan Beach, CA 90266
Mailing Address
P.O. Box 1
Manhattan Beach, CA 90266
Monday-Friday 3pm-sunset
Saturday-Sunday 10am-sunset
Suggested donation: $2 per person or $5 per family
Free. Donations Accepted.
Special Event Rental
Eric Martin, Facility Director & Educational Co-Director
Valerie Hill, Administrative Director & Educational Co-Director


The Roundhouse Marine Studies Lab and Aquarium is a non-profit organization committed to fostering and promoting the public study of, and interest in, the oceans, tidelands and beaches of Southern California, the marine life therein, and the impact of human population on that environment.

We are located at the end of Manhattan Beach Pier in Manhattan Beach, CA. The aquarium is open Saturdays & Sundays 10 a.m. to sunset and Monday through Friday 3 p.m. to sunset and group and education tours are offered.

Artifacts Collections

biology, ecology, mollusks, oceanography, water, shells, zoology

Educational Programs

Classes and Field Trips

Booking for the 2012-2013 school year is now open! Each year over 14,000 students participate in our educational programs. Teachers and students love our programs and look forward to their trips each year.

All our classes are aligned with state science standards. All of our programs are very flexible. If there is a special topic you’re covering in the classroom, we can accommodate you. If there’s a particular habitat, animal, or topic that you’re interested in, let us know. We can also teach fish and squid dissections with your class. We’ll be glad to mold our programs around your needs! Our staff has a diverse ocean science background, providing us with the expertise to teach your students about all aspects of marine science. Recently one of our instructors, Eric, was awarded the American Meteorological Society's award for Outstanding Non-formal Educator.


wheelchair access





Birthday Sea Parties! Dolphin and Shark parties!!!!

Sleep with the Sharks!!!

Ages 9 and up. Check-in at 6pm Friday evening, Check-out at 8:30am Saturday morning. Bring your sleeping bags & PJs and spend the night alongside the mysterious sharks at the Roundhouse! We will feed live sharks, learn shark biology, observe shark behavior, play shark games & pet live sharks! Dinner, breakfast, and snacks included.

Rent the Roundhouse

If you would like to rent the Roundhouse for a special meeting or event, please call for details.

Special Event Rental