See many sights and try many foods while you have the time. I'd be happy to make recommendations if you let me know what you prefer to do. I've been living in San Diego for 23 years and can surely provide good suggestions.
Food scene
All listed food worth trying, and they are near by the house within 15 mints driving
Gyu-Kaku Japanese BBQ
9844 Hibert StDelicious fresh meat and seafood over an open flame!
Delicious fresh made San Diego inspired sandwiches
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Board & Brew - Scripps Ranch
9880 Hibert StDelicious fresh made San Diego inspired sandwiches
H Mart San Diego
9440 Mira Mesa BlvdAsian market
Best Pizza & Brew
9172 Mira Mesa BlvdCrab Hut
One Paseo
3725 Paseo PlSky Deck at Del Mar Highlands Town Center
Haidilao Hot Pot San Diego
Sightseeing
Historic old town San Diego, authentic shops and delicious authentic Mexican restaurants.
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Old Town
Historic old town San Diego, authentic shops and delicious authentic Mexican restaurants.
I-Balboa Park
Wonderful walking gardens, and plenty of museums!
Beautiful world renowned beaches, less than 20 minutes drive
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La Jolla
Beautiful world renowned beaches, less than 20 minutes drive
LEGOLAND California Water Park
SeaWorld San Diego
500 Sea World Dr.