Mark Scoular, a police officer and ex-Royal Marine who founded Commando 999, said that the Marines would not let the bad weather hamper their marathon challenge over Remembrance weekend.
"It is wet, but we will all be cheery and absolutely fine, I'm sure. It will be a good old pace but we are all looking forward to it."
More top news
A professional mixed martial arts fighter has died after being involved in a hit-and-run incident in Florida.
The paint appeared on almost every part of the car, saying: "HOPE SHE WAS WORTH IT!" and " CHEATER IT'S OVER".
Boxer Amir Khan sparked laughter in Las Vegas when he aimed a verbal jab at Republican presidential candidate Donald Trump.