The original planning application to accommodate cruise ships of up to 340 metres long, at a berth stretching 435 metres into the harbour, will now be reassessed by the planning board.
Last November, Bord Pleanála granted planning permission for the cruise ship proposal but restricted the size of ship which could facilitated, to 250 metres long.
This permission was challenged by the campaign group Save Our Seafront in a judicial review before the High Court.
The group, which is an environmental non-governmental organisation chaired by local People Before Profit TD Richard Boyd Barrett, claimed that the environmental effect of the proposed cruise berths were not adequately assessed by the Board.
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