Because of the long distance and very few travel options. The ocean was too long to swim or find something to float on.
It is very possible that early people went up north from China, went through Russia, crossed westward near the north pole, and went down through North America. They likely traveled on foot and/or by animals.
Because they had to walk through all the seven continents with no known transportation
most used rafts across the pacific ocean to get to south america; other early humans came across the Bering Strait which once had a land bridge, then made their way further afield.
If you travel south of South America far enough, you will reach the continent of Antartica.
Until the end of south america
The Early Indian people, specifically the ancestors of modern Indigenous peoples of the Americas, are believed to have migrated to South America via the Bering land bridge around 15,000 to 20,000 years ago. They gradually spread southward over thousands of years, reaching the tip of South America, including regions like Tierra del Fuego, by approximately 10,000 to 12,000 years ago. This migration was part of a larger movement of people across the continent during the prehistoric era.
He was the first person to reach the South Pole, and he was also the first to reach both the South and the North Poles. He was one of the first people to fly from Europe to America.
Antarctica
If you head south from South America you would reach the continent of Antarctica.
antarctica
Currently, there are no direct train routes that connect North America to South America. However, one possible route would involve taking a train from North America to the southernmost point in Panama, and then continuing the journey by boat or plane to reach South America.
South America
you would be in Antarctica.