Lautaro gave military training to his fellow Kawésqar and made them work on improving their living conditions.
After a month he returned to Santiago and remained in the capital for two more years. He married a Chilean nurse and, in 1949, he returned with his wife to his native land.
In Puerto Edén he took charge of the radio station, while she took care of the policlinic.
One day something unusual happened: Lautaro disappeared in company of a Kawésqar woman. He had escaped from civilisation in a canoe to return to the nomadic life. Other kawésqar followed, and under his direction they installed a new indigenous community in San Pedro. Once there they hunted sea lions and otter and sold the fine pelts.
During three years the Kawésqar returned to their old way life as organised nomadic hunters under the guidance of a chief.
At the beginning of 1953 Lautaro along with the other Kawésqar, drowned in Puerto Calatur, the estuary of the Baker River. It was a misfortune for these people and the survivors returned to Puerto Edén.