The Detroit Free Press reports that Cedar Point will offer free admission this Sunday, September 10 to active duty military members, veterans, and first responders. Additionally, grandparents will receive free entry on Sunday to honor National Grandparents' Day.

So, here is the deal...active, retired and honorably discharged military members will need to show military ID. First responders will have to show current certification. Also, military and first responders can buy the rest of the family discounted tickets at $19.99 with a limit of six.

Grandparents must be accompanied by a current park pass holder or paid ticket holder.

The discounts are available at the park's ticket windows.