#297 Revisited: A Deep Dive Into the Past

In 1985 diver Henri Cosquer discovered a submerged cave entrance in the Mediterranean near Marseilles. Exploring over the next six years he discovered a chamber filled with prehistoric art. Conditions in the caves and the submerged passages leading to it are extremely dangerous: three divers lost their lives exploring the caves. Efforts to map the...

The post #297 Revisited: A Deep Dive Into the Past first appeared on Engineering Matters.