Combine your trip to Cape Spartel with a visit to the Caves of Hercules, an intriguing complex of subterranean caverns carving their way into sea cliffs west of central Tangier. According to legend, the heroic Hercules spent time here resting from his labours, but even without their mythological connection, the softly illuminated caves are spellbinding – go in through the entrance facing the sea and you’ll see its shape resembles the African continent.