Bonnechere Caves: A Journey into Earth's Ancient Past

Venture into the depths of the Bonnechere Caves, a remarkable geological site near Eganville, Ontario, where you can witness the artistry of nature spanning half a billion years. These caves, carved from ancient limestone, began forming during the Ordovician period when the area was submerged under a tropical sea.Discovered in 1855 and first explored in the 1950s, the caves reveal a network of underground tunnels shaped by the Bonnechere River. As you explore the caves with a guide, you'll discover well-preserved fossils of ancient marine life, including cephalopods and other prehistoric creatures embedded in the walls. The tour guides share stories about the caves' geological history and the explorer Tom Woodward.The caves maintain a cool temperature, so bringing a light sweater is recommended. Knowledgeable guides lead you through the passages, pointing out the unique geological formations and fossils. The standard tours last about an hour and are available from May to Thanksgiving.