Searching for oi oil - Ben Deakin rides down a mine in Slovenia
Prospecting for golden nugs
There's actually a race every year called the Black Hole enduro that includes the mine as a special stage. Take a look at the highlights here:
From the Deakinator: "Ever wondered what its like to ride down a mine????
Let Olly Wilkins and myself be your hosts when we explored a mine in Slovenia. Includes Thrills and a few spills!"