Outdoor enthusiasts know well the physical and restorative benefits of spending a beautiful day in the woods on a trail. But for many people, there are a lot of barriers to taking a simple hike because of a disability or difficulty with balance. A new grassroots movement aims to change that and make trails accessible to all. Jennifer Rooks of Maine Public Television reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders