If you are relaxing in Puerto Natales or have a few hours to kill, a visit to the Milodon cave is well worth a visit. This is a spacious cave that penetrates a couple of hundred metres into conglomerate rock. Formed millions of years in the past, the cave is called the “Milodon” after a prehistoric creature whose bones were found in the cave. There is a sculpture of the creature that stands near the entrance.
Conglomerate rock is comprised of millions of pebbles and small stones that were brought down with the river or rivers and deposited over millions of years, layer over layer, to be mixed with sediment and compressed with considerable force into a kind of natural concrete.