Good Time to Vacation in Michigan?

Hoosier here looking to vacation along Lake Michigan in Michigan in August. How has the air quality been? In Indiana it has been hazy and the AQI has been not great, but I have been able to do most outdoor activities as usual. Since you guys are a bit closer to Canada, has the air been a big detriment to enjoying the outdoors? Also, what are some areas along the lake (thinking Grand Haven, Holland, maybe ending at Traverse and seeing Sleeping Bear Dunes) that locals enjoy that won't be too busy or too expensive?

Your advice is appreciated!