- Mt Napier is the youngest volcano in the state of Victoria and last erupted around 30,000 years ago creating what is now a magnificent State Park around it.
- Mt Napier is a part of the Newer Volcanic Province and alongside Mount Rouse and Budj Bim is a part of the Kanawinka Region, the most extensive volcanic province in Australia.
- One of the highlights of the area are Lava Tubes.