The Friends of Haiku Stairs are staying the course and have filed an injunction to halt destruction of the “Stairway to Heaven,” pending appeal of a previously rejected lawsuit. It is the latest bit of legal maneuvering as the Friends exhaust all options — including an appeal to the state Historic Places Review Board — to save what they view as a historical landmark.

Those efforts have been largely unsuccessful, and the city is moving forward with a $2.5 million project to dismantle and remove the WWII-era stairs from the Koolau Mountains.

The judge who denied the Friends’ originating lawsuit is tentatively scheduled to hear the request for an injunction on June 21.