What fits into one day
The Mezquita-Cathedral should anchor the visit. Add the Jewish Quarter, Roman Bridge and one smaller stop if opening times allow.
Getting there
Direct trains make Córdoba practical from Seville. Check current fares, seat availability and the final return before booking.
Plan the day
Fix the main entry time first, then leave room for the lanes and patios around the old quarter. Summer heat makes an early start especially useful.