Are there showers in the public bathrooms or shower stalls anywhere that are free to public?

Thank you for asking out doors shower ...

There are outdoor open showers for rinsing yourself. These are not private showers.

I'm not sure because it was late in the afternoon when we were there

Where I was, there was only porta potties

Yes, there are pot a pods an a full service restroom close by

No

I don’t think so