DETROIT Cedar Point is back open for general admission reservations with safety precautions in place. Visitors have to undergo a health screening in addition to wearing masks while going on rides. The lines might appear longer since visitors are required to stand six feet apart. Gretchen Whitmers executive order on face masks takes effect at 12:01 a.m. Monday, July 13. Under the order people are required to wear a face mask in indoor public spaces and crowded outdoor spaces.