Work to refurbish and privatize a pavilion at Indiana Dunes State Park to bring restaurants, a rooftop bar and a banquet center along Lake Michigan is temporarily on hold until the state Department of Natural Resources gets permission from the National Park Service to move ahead. NPS and DNR officials say the main obstacle is a technical matter of determining whether the pavilion and adjacent banquet center will be designated as a public facility or whether the state will need to find replacement land of the same or higher value to replace it.