6. High Bridge Trail
Green Bay
A former railroad route, the High Bridge Trail is 31 miles long and is wide, level, and flat. Like many rails-to-trails spots, it’s made of crushed limestone and is a snap to navigate. There are 10 different spots where you can park and access the trail, allowing you to customize your trip. One thing you will not want to miss is the park’s namesake, the majestic High Bridge. It’s more than 2,400 feet long, rises 125 feet above the Appomattox River, and is on the National Register of Historic Places.