The main attraction is Old Town San Diego State Historic Park, which offers insight into life in early San Diego. Stop by an old schoolhouse and Casa de Estudillo, a restored adobe home filled with period furniture. Other diversions include Mexican restaurants and live mariachi performances. Don't miss the Bazaar del Mundo, an open-air market full of shops selling jewelry, pottery, and other goods.
Old Town San Diego tours are great if you want an insider's take on this historic part of town, and some combine food and drink tastings with visits to historic buildings and spots such as El Campo Santo Cemetery. Many city tours of San Diego stop in Old Town, including hop-on hop-off trolleys, food tours, and ghost tours.