Snow covered tracks.
Yes, well... walking tracks can be hazardous even inactive ones. I have a dent in my side from a fall on the rails; torn cartilage hurts worse than a cracked rib
If you fall on steel expect to break bones or fracture your skull. -Steel is unforgiving-
Not only can you trip on the rail, a tie, or other debris, the gravel washes out from under ties sometimes and can make a deep hole. Perfect to break a leg or ankle.
Always wear high top laced boots, and take your time.
Watch where you are stepping.
Small steps are ok, it's all the same fucking day.
Running isn't a good idea.
I've been walking tracks for over half a century, it's fun and rewarding.
Always remember there's pain that comes in colors and worse for those who get careless on them...