On November 21, 1520, a strait, now called the Strait of Magellan, opened in front of them. It was a maze of dead ends and false hopes. In these narrow passages, Magellan lost a second ship. The San Antonio carried most of the provisions. It turned back and returned to Spain.
"A short time after we sent a boat well supplied with men and provisions to discover ... They told us that they had found the cape (of the other sea) and the sea (was) great and wide..."
The First Voyage Around the World by Magellan by Antonio Pigafetta and Lord Stanley Alderley, 1520
After 38 days in the narrow, maze-like passages, the remaining ships reached the open sea on the other side of the South American continent. They named the body of water Pacific Ocean, because the seas were calm. Magellan led the fleet North on November 28, 1520. They thought the Pacific Ocean was small.
"Wednesday, the twenty-eighth of November, 1520, we came forth out of the said strait, and entered into the Pacific sea, where we remained three months and twenty days..."
The First Voyage Around the World by Magellan by Antonio Pigafetta and Lord Stanley Alderley, Wednesday, the 28th of November, 1520