When the first Friday the 13th bike rally was formed, it saw 25 bikers gathered at a local pub in November 1981.
Over 30-years later, a crowd upwards of 200,000 is expected to embark on Port Dover today.
The beach town will be closed to vehicle traffic, except those with resident passes and those riding in on motorcycles.
OPP Const. Ed Sanchuk is warning drivers to be patient as traffic will be massive.
Music, beer tents, and vendors will be scattered throughout the town.
The airspace over Port Dover will be closed to plane traffic.