Tunnels

Uncover one of Toronto's most intriguing hidden histories by exploring the tunnel system beneath the former Lakeshore Psychiatric Hospital cottages. The underground network once connected kitchens, laundries, and service buildings across the entire campus — a self-contained world running quietly below the surface. Look for the bricked-up lower windows on the cottage buildings as your clue that something fascinating lies beneath your feet. Perfect for after work — drop in solo or bring a friend. No experience necessary.