Visit the California Academy of Sciences in San Francisco's Golden Gate Park and skip past the lines with your instant ticket. Step through the museum’s doors and take your time to explore its massive rainforest, a planetarium and an aquarium. Learn how astronauts see planet Earth at the all-digital Morrison Planetarium and look for free-flying birds, exotic reptiles, and amphibians at the four-story Osher Rainforest. Visit the Steinhart Aquarium, home to nearly 40,000 live animals, and discover the African Penguin colony, the Discovery Tidepool and the Philippine Coral Reef with giant rays, clams and schools of fish. Have an unforgettable time at this must-see San Francisco museum as you explore the Earth’s biodiversity and ecosystems.