Every year in Scotland drivers get to test their driving that in Exercise Mudmaster.
This year more than 60 teams took part in the competition across the country.
For 25 years Scotland has played host to an annual driving skills competition that brings together the best off-road and military drivers.
It's a 130-mile navigational challenge from Dunfermline in the east through to Garelochhead in the west. 16 sites and a series of challenges – it really pushes their skills
66 teams came together for this year's event – both tri-service and civilian.
From Dunfermline, the teams head off – along with their route to the west coast they have to complete a series of stands at places like Winchburgh, Cumbernauld and Bathgate.
Testing their control of their vehicles, be they 4 by 4s or huge MAN SV trucks.
This isn't a race designed for speed, but a competition of skill – points are awarded for navigation, observation, discipline and safety.
Competitors come from all 3 services and from across the British Isles to take part in Mudmaster. For many different reasons.