This is a trip for adults who want to feel the full weight and texture of San Diego — not the theme-park version, but the city that sits at the edge of a continent, carries centuries of layered history, and backs up against one of the most dramatic coastlines in California. Two to three days is the right frame. You'll move between headlands and galleries, between living-history streets and a flight deck, and you'll spend real time outdoors rather than in queues.

Start on the water: the Coronado Island Ferry gives you the skyline from the bay before you've done anything else, and Cabrillo National Monument — where Cabrillo made landfall in 1542 — sets the historical clock running. Work your way up the coast to Sunset Cliffs and La Jolla Cove for the raw Pacific in two very different moods, then hike the mesa trails at Torrey Pines before dropping into Birch Aquarium to understand what's happening under all that water. Pull back into Balboa Park for the cultural core: the Museum of Us reframes human anthropology in ways that stick, the San Diego Museum of Art punches above its weight, and the Japanese Friendship Garden is the right place to slow down mid-afternoon. End an evening at Spreckels Organ Pavilion if timing allows — free concerts, open air, genuinely strange and great. Thread in Old Town for the Mexican-California history that most visitors skim past, and the USS Midway to close with something visceral and large-scale. This itinerary has a point of view. It rewards curiosity.