What two bodies of water does the Strait of Magellan link?

Strait of Magellan, Spanish Estrecho de Magallanes, channel linking the Atlantic and Pacific oceans, between the mainland tip of South America and Tierra del Fuego island. Lying entirely within Chilean territorial waters, except for its easternmost extremity touched by Argentina, it is 350 miles (560 km) long and 2–20 miles (3–32 km) wide.

The strait’s major port is Punta Arenas, on the Brunswick Peninsula; the port is a shipping point for Chilean mutton.

It is a common belief that Magellan was the first to discover the strait, however evidence suggests that he knew of a passage connecting the Atlantic and Pacific oceans before he set sail, and followed an old Chinese map in search of it. Indeed, it seems that the Chinese fleets may have mapped much of the world during their voyages between 1421 and 1423.