They are men for whom living on the edge is the height of exhilaration.
They have nerves of steel, as you might expect, from the first humans to ski down a volcano.
And they are coming to Glasgow and Edinburgh in November.
The duo in question are professional freeride skiers, Matthias Haunholder and Matthias Mayr, the stars of the new big-budget adventure film Onekotan - The Lost Island.
Both will be live on stage at this year’s screenings of the European Outdoor Film Tour at The Mitchell Theatre in Glasgow on November 3 and Portobello Town Hall in Edinburgh on November 4.
If you fancy a glimpse of what these lads have achieved, here's the evidence.
Haunholder and Mayr were part of a recent expedition to one of the most remote places on the planet.
And they became the first people to ski down a volcano in the centre of an uninhabited Russian island in the North Pacific Ring of Fire.
Where others may have been frightened to death, they rose to the challenge with a magnificent joie de vivre.
For Haunholder and Mayr, the adventure began just trying to get to Onekotan.
With temperatures of -20C and unrelenting storms, the expedition quickly became a dangerous odyssey.
But they prevailed and will explain how at the adventure festival.
The European Outdoor Film Tour is Europe’s biggest adventure film event, with more than 300 screenings in 14 countries.
It’s a two-hour special edit of this year's best adventure sports films from around the world.
And adrenaline junkies can't afford to miss it.
Further details are available here.