The Maldon Mud Race is an annual fun race held in spring (originally in the winter, now in late April or early May) at Promenade Park in Maldon, Essex, England, in which entrants compete to complete a 500 metres (550 yd) dash, in thick mud, over the bed of the River Blackwater.[1] The race is organised by the Maldon Mud Race committee, a team of volunteers, which raises money for charity.[2]