One critiquer wondered if such a thing is possible. Yes it is!
I remember first seeing this trick years ago on a Top Gear program set in Iceland, before Jeremy Clarkson started getting in trouble with the BBC, and the memory returned when I was looking for obstacles to throw in Charles's path.
I thought maybe that this would be rare anomaly, but when I researched the possibilities in earnest I discovered that the feat is very well known and has even been turned into a sport!
So I am confident that what I wrote is a manageable, if rather dangerous, stunt.