The Marathon Walk was introduced in 1997 following public demand.
The Marathon Walk is 8 miles long and begins at Belfast City Hall at 9.00am.
It is non-competitive and is designed for ramblers and hikers.
It follows a similar route as the main Marathon Race, the Wheelchair Race and the Team Relay Event.
Participants must be over 16 years old to enter.
All walkers must complete the course in less than 6 hours.
The 2018 route will remain the same as the 2017 event route.