Highways leading to Mystic Lake are all major roads.
On County Road 83, you'll see a large Mystic Lake sign and entrance at the top of the hill. The Casino occupies the side of the building that you see as you enter, beyond large parking lots. You should drive around the left side of the round casino building, to the Hotel entrance on the South side of the same building. If you've reserved a hotel room, valet parking will be free, at the hotel entrance. As you enter the hotel lobby, you'll be facing a courtyard restaurant.