What’s out there for kindergartners on their days off

I would like someone to help me figure out why there are not more options out there during the school year for kindergartners to participate in sports and recreation. I checked both the Elk River Parks and Rec and Community Education and there is nothing for my son to sign up for. 

He is in every-other-day kindergarten so it would be nice for him to have something to sign up for on the off days. Community Ed had a couple of things for ages 3–5 but a lot of kindergartners turn 6 in the fall and winter so then they no longer qualify to take those classes.

I would love to get some advice on what our age 6 kids are doing in Elk River on their off days. — Stacy Korst, Elk River