To reach the only place in the world where cave paintings of prehistoric marine life have been found, archaeologists have to dive to the bottom of the Mediterranean off southern France.
Then they have to negotiate a 137-meter (yard) natural tunnel into the rock, passing through the mouth of the cave until they emerge into a huge cavern, much of it now submerged.
Three men died trying to discover this “underwater Lascaux” as rumors spread of a cave to match the one in southwestern France that completely changed the way we see our Stone Age ancestors.
Lascaux—which Picasso visited in 1940—proved the urge to make art is as old as humanity itself.