Hundreds of people took part in the annual Maldon Mud Race at the weekend to raise money for good causes.
Competitors from as far away as Australia waded across the bed of the River Blackwater in the name of charity, while thousands of spectators lined the quayside to get a glimpse of the fun.
The event started in 1973 following a pub bet and has been a big part of the Essex calendar ever since.
It originally took place in the winter, but was moved to the spring in 2011 for health and safety reasons.
At its deepest, the mud can come up to knee level and the fastest anyone has completed the 500-yard course is around the four-minute mark.
- A gallery of images from the 2017 event can be seen below