I agree with Tom, when I recently visited I didn't see any children around and it was elevated atmosphere that might not fare best for curious children who want to poke around and explore. I couldn't find any information if kids are able to visit but with the rules and restrictions they do have listed, they seem pretty firm. Pets are allowed!
I have been to Crossings many times with Tastings and Tours and never saw any children there. Lots of "off limits" areas and tanks and other industrial equipment around. If children are part of a wedding ceremony and are closely supervised, I could possibly see it, otherwise, I would suggest no children. This is a very VIP, serene and beautiful location for weddings, formal events, etc.
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