Complex sentence: As the journey continues the "Surprise" makes a wide turn around the horn of Africa, at the time held by the Dutch who are at war with England, into the high 40s of the Antarctic Ocean and have to weather a severe storm.
Split into simpler sentences: As the journey continues the "Surprise" makes a wide turn around the horn of Africa, at the time held by the Dutch who are at war with England. To avoid encounters, "Surprise" navigates into the waters of the Antarctic Ocean and has to weather a severe storm.