Pacific Beach is an area in San Diego close to the beach. There are mostly young people, students and surfers in this area. PB has a great nightlife, food and an amazing beach. If you want a lot of great food, there is a place called Baja Beach Cafe and it's located on the boardwalk, close to the beach. They have good Mexican food and big margaritas. Another great place for food is Sushi Kuchi, here you can buy cheap and good sushi, and you will get 50% off your purchase.
Mission Beach is just within a walking distance from Pacific Beach. The sunsets here in San Diego are amazing. The easiest way to get around is by bike, and it's pretty cheap to buy one, otherwise you can rent. Hang by the beach with friends and watch the sunset.
La Jolla has a lot to offer. A beautiful area with a lot of restaurants and shops. Go kayaking and see sea lions, dolphins, turtles and cool caves. It’s a fun experience that you can do as a group or by yourself. At Torrey Pines State Natural Reserve you can hike, it is such a beautiful hike and something that you must see and afterwards you can go and have drinks at George's At The Cove with a beautiful view.
If you want to experience the heart of San Diego, Downtown is where you go. Here you can find everything you need. Big buildings, great parks, zoo, harbor, boat tours, shops and so much more. If you want to go out clubbing, Downtown has a lot to offer. Omnia is a big club and it's highly recommended to visit if you want to have a great night out. If you want good burgers you should eat at Shake Shack and don't forget to go to The Cheesecake Factory for dessert afterwards.
In Old Town you can experience and learn about the history of San Diego. There are many restaurants, shops and unique goods. Go there on a Tuesday (Taco Tuesday) or the weekend and you will experience the feeling of Mexico. You can buy a lot of Mexican food, good margaritas and feel the Mexican culture. Recommended restaurant in Old Town is Cafe Coyote and Casa De Reyes.
Coronado Island is a beautiful place you have to visit. Coronado has an amazing beach, and don't forget to visit the Hotel Del Coronado. The hotel has been there since 1888.
San Diego Zoo
San Diego Zoo is a non-profit wildlife sanctuary and conservation organisation and is the second best Zoo in the world. This zoo is beautiful and really big, you will probably spend a whole day here. One day pass cost approximately 60 dollars.