1,329 will start the Clerical Medical Parish Walk at 8 o'clock tomorrow morning from the National Sports Centre.
Not all will attempt the full distance of 85 miles around the Island's 17 parishes.
However, Race Director Ray Cox says a record number are expected to attempt it.....he's been explaining why such a challenge appears so attractive:-
Commonwealth swimming team to blend debuts with experience
It'll be the biggest of the Manx squads to compete in Glasgow
Commonwealth Games athletics squad in positive mood ahead of Glasgow
Five competitors - including three debutants - set to be involved
FC Isle of Man get pre-season underway with summer festival
Ravens get first runout ahead of new season
Swimming: Oscar Maddrell becomes triple British champion
Manx swimmer also breaks Island records during successful trip