A female corpse was found floating on Lake Lanalhue, located in the Contulmo commune, Arauco province, in the Bío-Bío region.
The discovery occurred on Friday night, when Carmen Soto Manríquez, 64, was found dead due to causes that are still being investigated.
The victim died of drowning by immersion, according to the first forensic expert report.
His body was rescued by the Submarine Rescue Firefighters Group, in the Manzano del Lago area, and taken to the Concepción Legal Medical Service for autopsy.
The deceased was a native of Chiguayante and was enjoying a vacation with her family in the province of Arauco.