Complex sentence: The Avon follows a meandering course through Christchurch from its source in the outer western suburb of Avonhead through Ilam, Riccarton and Fendalton, then through Hagley Park and the Central Business District.
Split into simpler sentences: The Avon follows a meandering course through Christchurch, generally from west to east. From its source in the outer western suburb of Avonhead, it flows through Ilam, Riccarton and Fendalton, then through Hagley Park and the Central Business District.