One day
Start early at the Cathedral and climb La Giralda before the queues, then straight into the Real Alcázar next door while it's still cool. Lose an hour wandering the lanes of Santa Cruz, then walk south to Plaza de España and the shade of the Parque de María Luisa. Loop back along the river past the Torre del Oro into El Arenal for a late-afternoon tapas crawl, and finish watching the light go from the Puente de Isabel II.
