National Trails Day by James • June 3, 2010 • Events, Transportation Trails • 0 Comments Yes, we know May has Memorial Day and July has Independence Day. But the second Saturday in June is National Trails Day, a day to discover, celebrate and enjoy trails. This year, National Trails Day is June 5. (National Road Days are held on the other 364 days of the year.) There are a lot of National Trails Day related events happening in Delaware on Saturday, including a ceremony in Newark Saturday afternoon dedicating the James Hall Trail as a National Recreation Trail.