West Kirby Santa Dash has been re-routed this Sunday, 24 November, due to the bad weather forecast from Storm Bert.
The event, which attracts hundreds of participants, usually follows a route along the Wirral Way.
However this year, participants will leave the Concourse at 10am, and run around the Marine Lake or along South Parade to cover the distance they wish to complete.
Organiser Fiona Hanik said: “We know that the weather forecast isn’t great, so please bear with us and we hope the rain stays off and we have a lovely morning and we raise lots of cash for West Kirby lifeboat crew.
“Home Instead and all our marshals have put a lot of time into organising this event, and we’d hate to have to cancel it.
“Unless the weather really turns bad, we’ll see you on Sunday for a 10 o’clock start.”