The walk is a flat walk and therefore is able to be comfortably handled by older people.
In past years it has not been at all uncommon to see grandparents walking with their grandchildren although the minimum age for the walk is 10 years.
Lions organisers say that moderate fitness and sturdy footwear are essential and walkers should take a strong torch for use in the tunnels, which are pitch dark.
The marshalling area for the walk is the Ashhurst Domain at the western end of the gorge.
Walkers are then bussed to the lime works at the Woodville end where the walk begins.
At the end of the walk there is a user-pays barbecue and drinks available in the car park.
Tickets can be bought from the Tararua i-Site in Woodville, by phone or by emailing info@tararua.com as there are no gate sales on the day.