Complex sentence: Despite only being the 29th largest city in Australia in terms of population (51,072), it is the 9th largest city in Australia in terms of area (386 km² or 149.0 sq mi), although more than one third of the city remains untouched bushland.
Split into simpler sentences: Despite only being the 29th largest city in Australia in terms of population (51,072), it is the 9th largest city in Australia in terms of area (386 km² or 149.0 sq mi). Despite this, more than one third of the city remains untouched bushland.