A modern day “caveman” living in the Italian alps is offering Neanderthal survival courses for those who would like to go back to The Stone Age, reports New York Post.

Guido Camia, 37, told Agence France-Presse that he charges $100 to teach people how to climb rocks while dressed in animal skins and fish barefoot with a spear.

“I show them how Neanderthals lived, what they ate, how they lit fires, used a spear,” Camia said.

“I show them how to use the basic equipment to cook.”

The primitive outdoor courses are supervised by Italy’s International Survival Federation. Camia said his “passion for the paleolithic” gave him the idea of a Neanderthal approach.

“He discovered fire. He was able to adapt to all weather,” Camia said about Neanderthals — who lived more than 40,000 years ago.

“He was a nomad who moved around a lot, lived in caves, but also knew how to build small shelters.”

There are basic courses where enough food is provided.

However, the more adventurous types will have to learn how to survive on their own — fast.

“That makes people understand that the brain uses the most energy. And even very simple calculations become difficult after three days without food,” he said.

Although the modern day cavemen doesn’t think the end of the world is imminent Camia does believe “we have to know how to adapt to the changing climate, to other types of food and to be able to change our ways of life.”