A 15-strong team will take on the nine-mile course on 9 September.
Claire Lee, senior brand manager at Swizzels, said: “It’s been an absolute pleasure to have supported YoungMinds over the past 18 months. The charity does fantastic work.
“This is our final push to raise money and we really hope the retail trade support us by donating via our JustGiving page – any donation will be appreciated, no matter how small.
“The money raised from the Tough Mud challenge will help provide young people with essential tools to look after their mental health and also empower adults to provide the best support they can to the young people in their lives.”