Panic usually starts in the stomach—a cold, heavy knot. I felt it tighten. I was lost in a city I didn't know, in an area that looked good on Instagram travel blogs but felt intimidating in the dim glow of streetlamps. I started walking, my sneakers scuffing against the sidewalk, trying to head north, trying to find the familiar skyline of downtown.

Part two of a San Diego vacation often moves away from the main harbor and toward the more rugged or serene natural landscapes. Torrey Pines State Beach California, USA