You can check out the route, and the time of totality in specific parks, at this website.
Great American Eclipse has developed a geographic model to estimate how many people will travel to see the April eclipse. This model predicts that between 1 and 4 million people will travel to the path of totality. Texas is expected to receive the majority of visitors, followed by Indiana, Ohio, New York, Arkansas, Illinois, Pennsylvania, Vermont, Oklahoma, Maine, and New Hampshire, the group said.
While you can plan for crowds, one thing you can't plan for are cloudy skies that would minimize the eclipse's impact.
