The 2009 Maldon Mud Race took place at the town's Promenade Park on Sunday, 27 December. Up to 250 competitors took part in the annual charity race across the River Blackwater.
Thousands of spectators turned out in the chilly conditions to watch the runners race from one side of the River Blackwater to the other and then back again.
The race length is just 500 yards, but the race can take up to 30 minutes to complete. All of the runners were raising money for a number of local and national charities.
The winner of the 2009 Maldon Mud Race was local man James Haskey-Jones. He completed the gruelling race in just under three-and-a-half minutes. Avril Duckworth from Burnley was the first woman home.
With a mixture of exhaustion, elation and relief, the emotion of completing the Maldon Mud Race was clear to see on most racer's faces.
The traditional post-Christmas event was run in temperatures of less than six degrees celsius, with the water of the River Blackwater a few degrees below that.
The race, which originates from a pub bet in the mid-1970s, is organised by the Maldon Lions and Rotary Club organisations and raises thousands of pounds for charity.
Fancy dress of all shapes, colours and sizes is a common sight at the annual Maldon Mud Race. The outfits tend to look a little different at the finish line!
BBC Essex staff member and all-round action man Mark Syred took part in his first Maldon Mud Race. He said the race was harder than climbing Mont Blanc, which he achieved earlier this year.
The mud may be dirty, smelly and cold, but each year competitors still flock to take part. Some of them even come back for another go!
What are these?