4 days in San Diego: must-see attractions and experiences

Fifteen minutes north of downtown San Diego, Birch Aquarium nestles among the cliffs of La Jolla. Serving as the public outreach center for Scripps Institution of Oceanography at UC San Diego, Birch Aquarium offers hands-on exhibits that spotlight cutting-edge ocean research and introduce guests to an incredible cast of ocean creatures.Discover the wonders of the ocean in Adam R. Scripps Living Seas Gallery, get hands-on with tide animals at the Tide Pool Plaza, and learn so much more about the magic of the aquatic world at this immersive aquarium in San Diego.You'll see everything from sharks and lobsters to turtles while learning all about ocean science and the marine environment. There are daily feedings and sea life interactions to watch, and if you want to get hands-on, you can head to the touch pool and pet sea stars and crabs.Birch Aquarium interprets the research and discoveries of Scripps Institution of Oceanography – a world leader in marine science – so you'll be learning straight from the source.

Find something for every adventure-seeker at this fun-filled park.

Immerse yourself in the wonders of the natural world at San Diego’s oldest museum! A staple in stunning Balboa Park, The Nat features regional, natural history and biodiversity of Southern and Baja California over a whopping five floors of exhibition space and more.Enjoy permanent exhibitions, exciting films in the giant-screen theater, a robust calendar of events and activities and the opportunity to see scientists at work. Discover fascinating stories about our natural world when you pay a visit to The Nat! 

Get a whistle-stop tour of the city with this 2-Day Hop-On Hop-Off Trolley Pass from Old Town Trolley Tours. It's the perfect way to get your bearings when you first arrive.Once you start your tour, you can hop off at any of the 12 stops along the route and re-join when you're ready. Friendly and knowledgeable guides provide the 'transportainment' along the way, giving you the history, context, and trivia relating to everything you’ll see.

Stroll around this peaceful garden in San Diego’s Balboa Park – the nation’s largest urban cultural park.The zen design of the Japanese Friendship Garden boasts traditional water and stone elements, two koi ponds, a bonsai collection, and unique attractions such as a cast bronze kannon bosatsu statue from 1735 AD. You'll enjoy the relaxing ambiance of the garden which fuses Japanese aesthetics with southern Californian characteristics.The garden was created as a gesture of friendship between the US and Japan and combines water, pastoral and mountain scenes, also known as 'San-Kei-En' - a three-tiered experience. As you explore, you'll learn about all the little landscaped details and what they represent in Japanese culture.Each calming element will bring a sense of peace and tranquility to your San Diego trip, so don't miss the chance to take some time out and enjoy this cultural sanctuary.

Sit back, relax and enjoy spectacular views of San Diego Bay. This professionally-narrated harbor boat tour takes in dozens of the city's best sights including Seaport Village, Shelter Island, Coronado Island, Point Loma, and Cabrillo National Monument. You'll cover 20 miles-worth of incredible landmarks and locations. As well as enjoying the sights, you'll also learn about San Diego's local history from the onboard narration and admire the area's stunning natural scenery. City Cruises' onboard staff will point out any marine animals you happen to pass by and you'll have plenty of chances to take photos along the way.

You'll journey through the history of flight and explore beautifully-restored aircraft and hands-on exhibits. There's a model of the Montgolfier brothers’ hot air balloon of 1783, a Spitfire Mk XVI and a 4D theatre where you can take to the skies.Learn all about the history of aviation, space flight, and get a sense of the danger and excitement involved in air combat.