Complex sentence: The civil parish no longer exists (having been subsumed into Bournemouth County Borough in 1931) but the ecclesiastical parish is still large in area, encompassing Hurn, East Parley and Bournemouth International Airport, as well as the Townsend and adjacent areas of Bournemouth.
Split into simpler sentences: The civil parish no longer exists (having been subsumed into Bournemouth County Borough in 1931). However, the ecclesiastical parish still exists; it encompasses Hurn, East Parley and Bournemouth International Airport, as well as the Townsend and adjacent areas of Bournemouth.