The swamps of the Minesing Wetlands, a 15,000-acre area about 15 kilometres west of Barrie, Ont., are not the most immediately welcoming of places. Convincing someone to spend a day exploring the thick, forested marshes—with clouds of mosquitoes in the air and bloodsucking leeches in the water—isn’t easy. I should know. I’ve been trying to convince friends to join me on a trip there for years. Again and again, my attempts are met with two questions: why would I visit, and why should I care?