My oldest girl, 6 has been to 21 festivals and camped for 90%. She went to Telluride at 9 months and hasn’t looked back. Her Birthday is on Labor day weekend and thinks the festival in Pagosa Springs we go to is for her. My 3 year old has been to about 9 festivals, she also loves it. Oh, and 12 and under, no ticket needed.
The best advice I can give you is the foam ear plugs (QUIET PLEASE, Brand) are what I use, warm them up in your hand, squeeze them flat into a circle, then with scissors trim the diamoter down just slightly. After cutting them they will want to stick the way they were cut, use a lighter and wave the earplug over the flame lightly, and it will regain it’s original shape. To use them, again warm them in your hand and install them, we use half a strip of white medical tape crossing the ear to keep them in, if you do it right they will last all day. Our Dr. told us to imagine anything we were listening to twice as loud, and asked “are you comfortable?”, this is what baby hears, keep that in mind.
At Rockygrass keep to the left side of the stage, under the trees. Shade is your friend.
I’d find a friendly camp onsite (with kids) and see if you can use them as home base for gear or a place to get out of the show, or rain if needed, which you likely would. I’d be willing to bet almost any camp you wonder into would gladly help, and maybe a tent for naps.
The rest is up to you keep them warm, or cool, dry, feed and your all happy!
My sister said to me when my first daughter came along “so I guess you’ll have to give up the festivals now huh?”.
It never crossed my mind, my first responce was “no way. It’s just a matter of lagistics”, and I was right. We haven’t missed this festival in a decade.