Cedar Point amusement park and the Northern Tier.

we are heading from Bowling Green to Cedar Point today. There is a way from the NT route from Cleveland, but we can’t find the way from the west to Cedar Point on the A CA map. I am about to google it, but thought I’d ask. 

MORE IMPORTANT:  The map shows a bike route from Sandusky to the park - people have told us there is no way to ride to the park... which is correct? 

Thanks