Explanation:

Lake Titicaca, straddling the border between Peru and Bolivia in the Andes Mountains, is one of South America's largest lakes and the world’s highest navigable body of water.

The Caspian Sea is the world's largest inland body of water, variously classed as the world's largest lake or a full-fledged sea

The Bering Strait is a strait of the Pacific, which separates Russia and the United States slightly south of the Arctic Circle at about 65° 40' N latitude. The present Russia-US east–west boundary is at 168° 58' 37" W. The Strait is named after Vitus Bering, a Danish explorer in the service of the Russian Empire.

The Andes, running along South America's western side, is among the world's longest mountain ranges. Its varied terrain encompasses glaciers, volcanoes, grassland, desert, lakes and forest.