A city park may be moved to make way for a new Liffey Cycle Route.
The planned route will run from Heuston Station and the Phoenix Park down to the 3arena with work expected to begin in 2016.
The path will be managed by Dublin City Council and the National Transport Authority and Aecom, an engineering firm, was tasked with coming up with four options for the new cycle path.
l A two-way North Quays path with buses rerouted to Benburb Street and Croppy Acre park relocated to the edge of the river.
l A two-way North Quays route with limited board-walks.
l A two-way North Quays path with buses re-routed to Benburb Street.
l A one-way path running along the building sides on the North and South Quays.
The Croppy Acre option would see the roadway between the park and the river becoming pedestrianised with a cycle path running alongside it and the widening of the green area itself.
This option received the warmest response yesterday, when the designs were presented to the council's transport committee. However, Green Party councillor Ciaran Cuffe said the idea seemed "challenging" and that it set "a few alarm bells ringing" for him.
The four designs will be put on display in the civic offices on Wood Quay next month for public feedback.