Complex sentence: Crofton has had quite a makeover in the last few years, mainly the old Nostell pit and surrounding area has been transformed into a nature park with a small pond and very good walking areas which many locals use.
Split into simpler sentences: Crofton has had quite a makeover in the last few years. Mainly the old Nostell pit and surrounding area has been transformed into a nature park with a small pond and walking areas which many locals use.