Protestors blocked work vehicles from accessing a site this morning due to a dispute over plans to build a €1.3 million water sports facility on the beachfront in Ardmore, Co Waterford.
A group of residents say the development will limit access to beach-users.
They have also raised concerns over flooding and sewage issues.
They are calling on Waterford City and County Council and Fáilte Ireland to find an alternative plan which would address the local concerns raised.
Ardmore was identified by Waterford City and County Council as a priority town for investment because of property vacancy, dereliction and population decline.
In a statement, Waterford City and County Council said the water sports facility is part of an overall fund in excess of €4m for the Ardmore Regeneration Project.
The local authority said that the development will include a new relief road and pedestrian walkway, additional car parking spaces, sea defences and the refurbishment of the 'sandcastle' building to incorporate a lifeguard station and public toilets.
The water sports facility will include changing facilities and showers, as well as outdoor seating.
Waterford City and County Council said the Fáilte Ireland funding is contingent on the overall project "driving public realm development, developing recreational amenities... [and] upgrading/refurbishing community centres".