The Caves of Hercules are a set of natural caves located just outside Tangier, Morocco, on the Atlantic coast. The caves are known for their distinctive rock formations and their association with the legendary Greek hero Hercules.

According to mythology, Hercules rested in these caves after completing one of his twelve labors. The caves were formed by the action of the sea on the limestone cliffs over millions of years, and the natural archway that leads into the larger cave is said to have been created by Hercules himself as he rested his head against the rock.

The caves are a popular tourist attraction, and visitors can explore the interior with a guide. The larger cave is illuminated with artificial lighting, and visitors can see the impressive natural rock formations, as well as a small underground lake.

In addition to their mythological significance, the Caves of Hercules also have historical and cultural importance. They are located near the ancient Roman city of Lixus, and it is believed that the Romans used the caves as a place of worship. The caves have also been associated with pirates and smugglers over the centuries. Today, they are a popular destination for tourists and locals alike, who come to enjoy the stunning natural beauty and rich cultural history of the region.