The governor will determine what happens and when regarding restaurants and rentals. I would think the county could just wait for these decisions. But they are watching our neighbors open beaches for locals and I guess they are trying to do something similar. As far as the date, I think it gives them and Sheriff and South Walton Fire a few days to prepare for beach patrol, enforcement, etc.
I am proud of Walton County to have closed the beaches in mid March when things were crazy crowded. They acted to protect the community. I would like to see them wait a while longer to open up the beaches for many reasons. Groups of 10 is safe social distancing? I don't think so. People are still visiting. And now more will come.