Alcatraz Island was once the most secure federal prison in the U.S., and held notorious inmates like Al Capone. After being decommissioned in 1963, the prison is now a museum, welcoming millions of curious travelers every year. Catch the ferry on Pier 33 to Alcatraz and explore the island at your own pace as you soak up the views of San Francisco and the bay. You can take a guided tour with a park ranger to learn more about the intriguing anecdotes about the facility’s fascinating history. But book your spots early—tickets sell out fast. – Tripadvisor

Get ready for the ultimate Hollywood experience! Find a full day of action-packed entertainment all in one place: thrilling theme park rides and shows, a real working movie studio, and Los Angeles’ best shops, restaurants and cinemas at CityWalk. Universal Studios Hollywood is a unique experience that’s fun for the whole family. Explore Universal Studios backlot on the legendary Studio Tour. Then face the action head on in heart-pounding rides, shows and attractions that put you inside some of the world’s biggest movies. End your day with the energy and excitement of Universal CityWalk. All this and much more. Only at Universal Studios Hollywood, The Entertainment Capital of L.A.

A public observatory in Los Angeles, Griffith Observatory has been featured in many movies, from 'Rebel Without a Cause' to 'La La Land'. Nestled on Mount Hollywood, Griffith Observatory boasts some of the best views of the city—the best time to visit is at sunset. Inside, the observatory offers quite the experience as well—it has a planetarium, various exhibits, free-to-use telescopes, and more. The best part? Admission is free and it’s easily accessible with plenty of parking. Make a day out of your visit at Griffith Park, where you’ll find hiking trails and horseback riding. – Tripadvisor

The San Diego Zoo pioneered cageless exhibits and offers travelers a fun and informative experience. Featuring over 4000 animals, the park gives you a peek into the wildlife of several ecosystems, from deserts to rainforests. Ride the tour bus, which crosses three quarters of the zoo’s area, and learn more about the animals from the guide as you view them in their natural habitats. You can also hop on the Skyfari gondola lift to see the entire park from above. Tickets to the San Diego Zoo that also cover the San Diego Zoo Safari Park in Escondido are available for a discount. – Tripadvisor

At this beach surronded by sandstone cliffs on the San Diego coast, the water is calm enough for travelers to enjoy diving and snorkeling. Walk along the rocky shore to spot large colonies of sea lions lounging in their natural habitat and looking after their pups, and have a picnic while soaking up the views of the ocean from the cliffs at sunset. If you visit at low tide, you’ll get to swim in the crystal clear tidal pools as well. You can also visit Sunny Jim's Sea Cave which is accessible via a tunnel. Visit early in the morning to find a parking space more easily. – Tripadvisor

Located in downtown San Diego, the USS Midway (Museum) was America’s longest-serving aircraft carrier of the 20th century. Today, the interactive museum is an unforgettable adventure for the entire family as guests walk in the footsteps of the 225,000 young men who served on Midway. Visitors explore a floating city at sea, the amazing flight deck and its 29 restored aircraft, flight simulators, and are inspired in the Battle of Midway Theater, included with admission. Admission also includes a self-guided audio tour narrated by Midway sailors in English, Mandarin, Spanish, Japanese, French and German. Visiting Midway is a once-in-a-lifetime experience in San Diego, known around the world as "Navy Town, USA."

The Getty Center in Los Angeles is an astounding place to spend a day marveling at world-class art and relaxing in beautifully manicured gardens. Take the tram up to this lavish postmodern complex, which houses a sprawling museum featuring masterpieces by the likes of Van Gogh, Monet, and Cezanne. You can also enjoy superb views of the city from the Cactus Garden, and savor a delicious contemporary menu at the center's restaurant. You can visit the complex for free, though there is a parking fee. To skip the lines, book a museum tour to delve deeper into the art with the help of a knowledgeable guide. – Tripadvisor

Stretching 4,200 feet and towering as high as a 65-story building, this well-known bridge is the gateway to San Francisco.

This 1,200-acre nature park comprises 17 museums, gardens, musical theaters, a sports complex, and the world-famous San Diego Zoo. The park’s Spanish-Moorish architecture and 19 distinct gardens (some require admission fees) attract both tourists and locals. Don’t miss the San Diego Air and Space Museum, the Spanish Village Art Center for unique handicrafts, and the Spreckels Organ Pavilion, where free concerts are hosted in the evenings. Travelers recommend putting aside the whole day to explore the park. To make the most of your time, hop on the Balboa Park trams (they’re free!) to get around. – Tripadvisor