After <u>Magellan</u> and his crew sailed the Río de la Plata, they find a suitable place to spend the winter, which they called <u>Port San Julián on March 30, 1520.</u> <u>Magellan</u> decided to stay in that <u>port for 148 days</u>, a very long period, and this is not understood by many expedition members <u>and a mutiny happened.</u> During this period <em><u>another important event took place: the ship "Santiago", commanded by Juan Serrano, Portuguese and possibly a cousin of Magellan, had been sent to explore something more to the South while the others remained in the Port of San Julián</u></em>. Apparently it is stuck by the great oscillation of the tide, losing the ship.
When finally <u>Magellan</u> decided to leave <u>on August 24, 1520</u>, apparently they found very bad weather conditions and stopped, this time <u>in Port of Santa Cruz, for another 53 days. </u>Only three days after leaving Port Santa Cruz, <u>on October 21, 1520, </u>they discovered Cabo Vírgenes and began to enter, without yet knowing it, into the crossing on the other side of America.
<u>The navigation of the Strait of Magellan (not known at that moment) will take them no less than 28 days</u>, and finally, on November 18, 1520, 8 months after arriving at Port of San Julián, they will flow into the ocean they called Pacific.