Complex sentence: The designated area of the AONB covers approximately half of the island (189 square kilometres), concentrated around the south-west and north-west coastal areas and including an area of inland downland in the island's east.
Split into simpler sentences: The designated area of the AONB (189 square kilometres) covers about half of the island. The ANOB is concentrated around the south-west and north-west coastal areas and includes an area of inland downland in the island's east.