Complex sentence: Altona has many significant parks and gardens, including some important environmental conservation areas and wetlands along the shores of Port Phillip, which are also used by visitors and residents recreationally including a long promenade along the bay.
Split into simpler sentences: Altona has many significant parks and gardens, including some important environmental conservation areas and wetlands along the shores of Port Phillip. These are also used by visitors and residents recreationally, including a long promenade along the bay.