Do they allow bringing your own kettle charcoal grill to use in picnic area?

Yes. I've done it with my family and friends too.

Yes they do

Yes but only at designated picnic areas. Check their website for the location of these picnic areas if you aren't sure.

Yes they do but check out in their website.

I think so

Yes as long as you put out the fire

I don't think so.

I believe so.....but not 100%