Complex sentence: Thorburn Lake Water Aerodrome, is actually two separate docking areas on Thorburn Lake, Newfoundland and Labrador, Canada and are open from the middle of April until the middle of November.
Split into simpler sentences: Thorburn Lake Water Aerodrome is the name given to two separate docking areas on Thorburn Lake, Newfoundland and Labrador, Canada. They are open from the middle of April until the middle of November.