I haven't but know someone who has.
It's as you said ... combo of the two.
The one she went to, had both wood carving and quilting.
She already did quilting, so instead decided to give wood carving a try, just for the experience. So, every morning she and BIL went their way, while SIL went to the quilting. Lunch break on their own back at their campsites and then at the end of the day back to their camping life! :)
She's gone more than once and rotates between the two, each time. I know it was more than a weekend, so thinking about five days.
She's gone to various States ... I'm thinking Pennsylvania, Indiana and Florida were some, but I may be off base.
Do some googling and perhaps you will find it.