Railbiking on abandoned railways.
https://www.youtube.com/watch?v=viSJsOUCGu4
Previously:
https://www.homemadetools.net/forum/...032#post168307
https://www.homemadetools.net/forum/...646#post104908
https://www.homemadetools.net/forum/...229#post145964
https://www.homemadetools.net/forum/...976#post137677
https://www.homemadetools.net/forum/...608#post159136