Kerry County Council has declined to comment on why it's proposing a diversion along part of the Tralee-Fenit Greenway.
The greenway, which is 10 kilometres in length, is due to be completed next year.
The council has planning permission to construct the amenity along the route of the disused Tralee-Fenit railway line.
However, it's now seeking approval from Tralee councillors to allow a 700-metre diversion from the route.
Kerry County Council is proposing a 700-metre diversion at Bawnboy; at the end of this month, county councillors on Tralee Municipal District will decide whether to support this change to the route of the Tralee-Fenit Greenway.
Friends of Tralee-Fenit Greenway Group is objecting to the proposed diversion and in a submission to the council, says it was led to believe that the reason for the change was that a business is refusing to vacate a section of the rail line or to adapt to accommodate the greenway. The group doesn't identify the business.
Radio Kerry contacted the business, Southwest Pallet Production, which is based in Bawnboy. Martin O'Regan of Southwest Pallet Production says he's always been 100% committed to the greenway and that he wants it to follow the rail line. He says he's happy to relocate to any one of several locations and that he's not holding up the greenway project.
Mr O'Regan alleges that he was told by Kerry County Council that it was proposing the 700-metre diversion because it would cost too much to relocate his business.
Kerry County Council has declined to address Mr O'Regan's claim. The council says it can confirm there is no anticipated additional cost or delay involved as result of the statutory process to allow planning permission for the diversion and that this statutory process is considered the most cost-effective way of developing the greenway at this location.