"San Diego's massive Balboa Park is home to 17 museums, the city's famous zoo , acres of gardens, and 65 miles of trails. There's a little—or rather, a lot—for just about everyone. If we're talking hikes, Balboa Park Trail #1 is paved and short, at just 1.5 miles, but it also avoids most of the more heavily touristed parts of the park. If you're looking to get in a quick trail run or workout, that's the way to go. For something more heart-pumping, lace up for Trail #5, a 6.6-mile loop that traverses paved and dirt paths through some of the lesser-seen parts of the park as well as landmarks like the Cabrillo Bridge and Spreckels Organ Pavilion." - Archana Ram