A hearing date has been set for legal challenges to An Bord Pleanála's decision to grant permission for the South Kerry Greenway project and accompanying Compulsory Purchase Order.
The cases will come before the High Court later this month.
Permission has been granted by the High Court for two separate judicial reviews.
The first has been lodged by environmentalist Peter Sweetman from Rossport, Co Mayo and James Clifford a farmer from Killurley West, Caherciveen.
Mr Sweetman claims the granting of permission contravenes the EU Habitats Directive, while Mr Clifford raises specific concerns about the decision to omit two sections of the greenway and how this will impact on his land.
The second application has been lodged by the Greenway Information Group, which is made up of landowners whose holdings will be affected by the proposed 32-kilometre greenway from Glenbeigh to Renard.
The hearings are now set to take place from June 23rd to 25th inclusive.
Speaking ahead of the hearings, Fianna Fáil Cllr Michael Cahill says the three days will be the most significant for the people and businesses of south Kerry and for the generations to come.
The Rossbeigh councillor, who believes the greenway would be a game changer for the region, says the future viability of the region hangs in the balance.