Days 1–3 anchor in Málaga with compact old town, Alcazaba and Muelle Uno; Caminito is an early out-and-back with a practical lunch.
Days 4–5 shift to Nerja with cave timing and a single coast experience; Frigiliana avoids the midday furnace.
Days 6–7 land in Marbella with old-town focus and a clean exit — no invented grand finale excursion.