Visit the historic Inneston village and explore the ruins of an abandoned gypsum town along the Inneston Historic Walk. Once home to around 200 people, Inneston was completely self-sufficient, having its own school, post office, bakery, general store and tennis court.
Over 40 shipwrecks lay off the coast of Innes National Park and the Southern Yorke Peninsula. An interpretive maritime trail along the coastline recounts tales of tragedy, bravery and the final agonising moments before these ships sank beneath the waves. Visit the rusted relics of the park's most famous wreck, The Ethel, that came to grief in 1904 when it ran aground near the beach during a severe storm.
Take a short walk to admire the operating lighthouses at Cape Spencer and West Cape. On the horizon is another lighthouse that operates on Althorpe Islands Conservation Park. These lighthouses not only provide safe passage for vessels today, but offer an insight into the area's maritime heritage.
Innes National Park is one of only a few places in the world where living stromatolites are known to exist. Stromatolites consist of layers of blue-green algae (or cyanobacteria). New layers develop on top, closest to the light, trapping whatever silt may be present. Old layers underneath are impregnated with calcium carbonate and become fossilised. In this park, the dome-shaped structures occur around the edges of the salt lakes. Carbon dating has indicated some of the stromatolites to be around 3,000 years old. Examples of stromatolites can be seen at the park's visitor centre.