Complex sentence: A notable change to the route that season was the extension of the fall to spring schedule to departures from Tsawassen, enabling northerners to travel directlly from Prince Rueprt to Vancouver by sea.
Split into simpler sentences: A notable change to the route was made that season during the fall to spring schedule. The ship departed from Tsawassen, enabling northerners to travel directlly from Prince Rueprt to Vancouver by sea.