FYI Good charter with some spots left.

https://www.iowavalleybicyclecharter.com/

Road with them a few years ago, great charter. Friendly group and had lots of solo riders so finding people to hang with was easy. They have free beverages everyday, bring in a couple private porta potties at each campsite and set up a large canopy tent each day with chairs so you can relax in the shade and enjoy their beverages.

Not too late to sign up for a great experience.