The California Academy of Sciences is a science museum—and scientific and educational institution—located in San Francisco's Golden Gate Park.

Explore the world from the heart of San Francisco at the only aquarium, planetarium, rainforest, and natural history museum under one living roof. Your Academy adventure starts here. See what's on, get transportation tips, and browse know-before-you-go info.

World-changing science. We’re an aquarium, planetarium, rainforest, and natural history museum in the heart of San Francisco’s Golden Gate Park—and a powerful voice for biodiversity research and exploration, environmental education, and sustainability across the globe.

Your Academy adventure starts here! Bundle Academy admission with 3 more top SF attractions and save 46% with San Francisco CityPASS®. Visit for free all year long by becoming a member. Discounted admission is available at the ticket window for EBT/CalFresh, WIC, Lifeline Pass, and Medi-Cal cardholders.

The California Academy of Sciences is open every day of the year—and you can explore it all with a single ticket. See our hours, ticket prices, free days, and more.

Located in the heart of San Francisco in beautiful Golden Gate Park, the Academy is easily accessible via public transit, bicycle, rideshare, or car. We encourage sustainable transportation whenever possible.

World-class science should be available to everyone. From free field trips for all San Francisco students to $3 admission for EBT/CalFresh, WIC, Medi-Cal, and Lifeline Pass cardholders, we're proud to open our doors to open more minds.

Learn about the changes our San Francisco science museum has seen over the years. The Academy has come a long way since 1853. Explore highlights from a rich history of exploration and education.

From deep sea to deep space, your Academy ticket is your passport to science adventures. Explore our exhibits, public programs, events, and more.

The Academy's Steinhart Aquarium is home to 1,000+ unique animal species, cutting-edge interactive exhibits, and the world's largest living indoor coral reef. Come face-to-fin with nearly 60,000 animals—from deep-sea oddities to Claude, our alligator with albinism.