I did a quilter's cruise to Alaska 5 years ago and it was wonderful. The teachers were Kaye Woods, Sue Hausman, Betty Cotton. It was an so much fun!! Wish I could afford to do it again.
I would be interested in a retreat, but most of the local ones here in Washington you bring your own group 6-8 people. I understand that it is alot of fun and you rent the house next door to the quilt shop. I don't know 6-8 quilters who want to do it here and they don't open it up to single participants.
I was involved for a few years with a group and I hosted a quilters get together at our cabin in Eastern Washington. We had about 10 people (a little crowded), but lots of fun
I also would be interested in doing something again.