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:-
TT 2025: Triple-header of opening racing planned for tomorrow
Evening contingency session also available if required
TT 2025: Michael Dunlop tops the board in Qualifying 5
29-time winner's Superbike sets best pace of the day
TT 2025: Hickman thanks marshals, medics and staff after crash
14-time TT winner was involved in incident at Kerrowmoar on Friday (30 May)
Richard Hammond makes first visit to Isle of Man TT
Renowned motoring presenter and journalist led out today's legacy lap
TT 2025: Todd sets fastest lap of meeting in brief qualifying session
Session scrapped after just over an hour due to poor weather