Complex sentence: And so they crossed two thirds of the Pacific Ocean sailing more than 8800 km (5500 miles), until they were rescued by a Taiwanese tuna fishing boat 200 miles east of Marshall Islands on August 9th, 2006.
Split into simpler sentences: And so they crossed two thirds of the Pacific Ocean sailing more than 8800 km (5500 miles). They were rescued by a Taiwanese tuna fishing boat 200 miles east of Marshall Islands on August 9th, 2006.