What a neat and unique hike through historic train tunnels! The parking lot is located across the street from Donner Ski Ranch. It’s a sizable lot with plenty of parking. You walk through a series of tunnels. A few tunnels are dark and damp, so flashlights would be a good idea. The graffiti art adds an interesting touch to the hike. In between tunnels, you’re able to enjoy terrific views. Dog and kid friendly, too.