With a new tourism season upon northern Michigan, uncertainty remains about how national parks will handle millions of visitors amid lingering staffing questions because of back-and-forth federal workforce policies. Sleeping Bear Dunes National Lakeshore has approximately two-thirds of the seasonal staff it typically needs to welcome more than 1.5 million visitors over the next three busy months. “They’re still trying to get anybody else to accept a job, but it looks like there won’t be many more coming,” said former Sleeping Bear deputy superintendent Tom Ulrich. He added that the true impacts aren’t being felt yet because the park isn’t yet getting 400,000 visitors per month as they do in peak-season.