I would like to hold a small business meeting for my non-profit organization in the cafeteria/cafe on a Sunday afternoon in mid-July. Is this possible/would there be a fee involved. Please advised. Thank you!

I'm sorry, but I'm not in a position to speak on such matters,as I was just a visitor to the park.

It sounds like you're interested in an indoor venue, which would be the Blue Heron Center. https://www.aacounty.org/departments/recreation-parks/parks/quiet-waters/blue-heron-center/index.html

You would have to call and cheak