More than 500 people have already registered to take part. Online registration closed earlier.
However many more people are expected to sign up when registration begins at 10.30am at the Ballyliffin Hotel tomorrow (registration closes at 1.30pm).
The race, run and/or walk starts at 2pm….finishing on the golden sands above.
With sunny skies and temperatures touching 16C tomorrow, it promises to be the most spectacular race yet.