Stoke on Trent's, Assistant Area Commander Glynn Luznyj and Hanley Firefighter Dave Bennion have competed in one of the toughest endurance courses in the world to raise money for good causes.
The two Staffordshire Firefighters raised approximately £370 during their Tough Guy challenge which will be split between The Fire Fighters Charity and Funds for Heroes.
"This was by far one of the hardest physical challenges I have ever taken part in."
Glynn Luznyj, Assistant Area Commander, Stoke-on-Trent
The 'Tough Guy' competition, which took place on Sunday, is held annually in January and has been organised for the last 20 years aiming to raise money for different charities.
The course which is in Perton near Wolverhampton involved running eight miles cross-country through torrential mud, sub zero temperature lakes, barbed wire and fire. 5,200 competitors from all over the world took part in the event but at least 600 dropped out mainly due to the effects of hypothermia.
It took the firefighters approximately 1 hour 39 minutes (Glynn) and 2 hours 40 minutes (Dave) to complete the course. Places and official times will be released next week.
Glynn Luznyj said: "I have always enjoyed taking part in sports challenges, especially when it involves raising money for charities which support firefighters and our armed forces.
"This was by far one of the hardest physical challenges I have ever taken part in - both myself and Dave have been training hard for the last three months however no amount of training can prepare you for what we went through.
"Congratulations must be extended to Dave's father, Bernard, who also completed the course.
"Thank you to everyone who sponsored us - we are delighted at the amount of money we have raised and it has made the gruelling challenge all worthwhile!"