This is a first-timer's three-day San Diego itinerary with actual tradeoffs.
Day 1 needs a car and protects the coast before the crowds. Day 2 gives the
city's cultural core and strongest walkable neighborhood block room to breathe.
Day 3 joins Barrio Logan, the harbor, and Coronado around real opening and ferry
times. Twelve is the strategic count: enough range to feel the city, without
turning three days into a race for proof-of-presence photos.
The inclusion order came from a locked activities rubric covering experience,
uniqueness, access reliability, itinerary fit, value, safety, and local
significance. The published order is different on purpose: itineraries run by
geography, meals, closing times, and daylight—not an abstract score. We screened
36 plausible stops and deep-reviewed 25. Review totals never added points, and
multi-location brands received no popularity bonus.
Mission Beach, Liberty Public Market, Seaport Village, and the Maritime Museum
are not bad. They lost because they repeat a stronger role or consume the time
another stop needs. The Zoo replaces most of Day 2. Torrey Pines replaces part
of Day 1. A Padres game replaces the evening around it. That is how a good
three-day plan stays honest.
For a more compressed route, use our one-day San Diego
itinerary. For deeper planning, compare
the Balboa Park guide, the La Jolla
guide, the Coronado
guide, and the North Park
Saturday.