Complex sentence: In the 18th and the 19th Centuries, Irvin's Bay was a working harbour for shipping sugar and other produce grown from nearby estates and the Bay House to England and France.
Split into simpler sentences: In the 18th and the 19th Centuries, Irvin's Bay was a working harbour for shipping sugar and other produce. The goods were grown in nearby estates and the Bay House and were sent to England and France.