About Cabrillo Marine Aquarium
On Cabrillo Beach in San Pedro, California, Cabrillo Marine Aquarium (CMA) is a center for marine science education, conservation, and community engagement. Founded in 1935, it focuses exclusively on Southern California’s marine ecosystems. Its facility spans 21,000 square feet and combines public exhibits with research and education programs (LA Conservancy; Daytrippen.com).
History and architecture
The aquarium began as a modest collection of marine specimens in the Cabrillo Beach Bathhouse, built in 1932 in the Mediterranean Revival style. Lifeguard Bob Foster, its founder, initially displayed his personal collection to beachgoers, prompting interest in local marine biodiversity. The aquarium later became known for educational programs such as the annual grunion runs (SanPedro.com; Daytrippen.com).
By the late 1970s, the bathhouse could no longer meet the aquarium’s growing needs. In 1981, CMA moved into a new facility designed by Frank Gehry, expanding its capacity for exhibits, research, and public programs (LA Conservancy).
Gehry’s design uses chain-link fencing as an architectural element, guiding visitors through indoor and outdoor exhibit spaces. Weathered materials and an industrial-art motif reflect San Pedro’s maritime and waterfront heritage. A 2004 expansion added a distinctive fiberglass-tube screen, laboratories, a library, and exhibit spaces (Daytrippen.com).
The original 1932 bathhouse remains beside the aquarium. Restored in 2002, it preserves details from the 1930s while meeting modern accessibility and safety standards (SanPedro.com).
What to see and do
Exhibits and research
The Susanne Lawrenz-Miller Exhibit Hall features five regional habitats and more than 36 exhibits, including sharks, eels, octopuses, and crabs.
The Children’s Exploration Center has interactive learning spaces, including crawl-in aquariums, mud walkways, and touch tanks.
The Aquatic Nursery presents research displays featuring more than 40 native species and breeding programs for endangered species. Research facilities and the Virginia Reed Moore Research Library support marine studies and public education (Daytrippen.com).
The aquarium’s design also shapes the visitor experience: chain-link volumes lead through exhibit spaces and courtyards, while the interplay of materials and weathered patina reflects the waterfront setting (LA Conservancy).
Community events and programs
- Whale Fiesta An annual February festival celebrating the Pacific gray whale migration, with educational displays, puppet shows, music, expert lectures, and creative contests (Live South Bay Local).
- Meet the Grunion Seasonal nighttime events featuring films, hatching demonstrations, and guided beach observations of the grunion spawning ritual (San Pedro Calendar).
- Beach cleanups, Earth Day Fair, and Native Garden Restoration Monthly volunteer events promoting conservation and offering service credits.
- Sensory Sensitive Saturdays Low-stimulation hours with sensory resources for guests with sensory sensitivities (KultureCity Social Story).
Conservation, education, and volunteering
CMA’s aquatic nursery supports breeding and recovery programs for endangered species such as white abalone and garibaldi. The aquarium also collaborates with the Marine Mammal Care Center Los Angeles and NOAA’s Stranding Network on marine mammal rescue and rehabilitation (Marine Mammal Care Center Los Angeles). Its environmental research includes studies of algal blooms, marine mammal health, and ecosystem monitoring.
Ocean Outreach provides classroom and field trip programs for schools (Spring 2025 Calendar). Docent and youth volunteer training gives adults and students opportunities to develop marine science and public speaking skills. Educator workshops offer free resources and training for teachers.
Practical visiting information
- Hours Tuesday–Sunday, 10:00 AM–5:00 PM. Closed Mondays and major holidays.
- Admission General admission is free; fees may apply for special programs.
- Guided tours Available by appointment for groups and schools; educational tours are offered for schools and visitors.
- Parking On-site and nearby public parking is available. Parking is also described as ample.
- Accessibility Wheelchair accessible, with ADA-compliant facilities. Service animals are welcome.
- Address 3720 Stephen M. White Drive, San Pedro, CA 90731.
- Getting there Accessible by car and public transit from Los Angeles.
For current hours, ticketing, and accessibility details, visit the official Cabrillo Marine Aquarium website.
Renovation update: As of 2025, the main Exhibit Hall is temporarily closed for renovations and is expected to reopen in Fall 2025.
Tips
- Arrive early, especially for events.
- Wear comfortable shoes for the indoor and outdoor areas.
- The aquarium’s architecture and beach setting offer photo opportunities.
- Sensory-friendly resources are available.
Nearby places
- Korean Bell of Friendship A historic landmark with panoramic views.
- Fort MacArthur Military Museum Exhibits on regional military history.
- Cabrillo Beach and Bathhouse The restored 1932 bathhouse is adjacent to the aquarium.
- Other nearby attractions include the Museum of Latin American Art, Catalina Express, USS Iowa Museum, and local eateries.
Frequently Asked Questions
What are the aquarium’s hours?
Tuesday–Sunday, 10:00 AM–5:00 PM. It is closed Mondays and major holidays.
Is admission free?
Yes, general admission is free. Fees may apply for special programs.
Are guided tours available?
Yes. Tours are available by appointment for groups and schools.
Is CMA wheelchair accessible?
Yes. The facility is wheelchair accessible and ADA compliant.
Are pets allowed?
Only service animals are permitted.
Is there parking nearby?
Yes. On-site and nearby public parking is available.
Are there ongoing renovations?
As of 2025, the main Exhibit Hall is temporarily closed for renovations and is expected to reopen in Fall 2025.
