Playa del Zapillo is the city's easiest beach, a long strip of sand southeast of the centre with a promenade, chiringuitos, and enough space to make a swim feel casual rather than like a day trip. It is not wild or secluded; it is where Almería goes to cool off.
The beach works best as part of the city rhythm. Sightsee in the morning, retreat here in the afternoon, then drift back toward the centre for tapas once the heat drops.