My daughter has attended the GF's Children's Activities numerous times over the years, most recently during this Summer's vacation. She also attended the YC/BC's Albatross Cruise for the first time (she attended it twice during our vacation, but I haven't found the time to post her photos of it). My daughter loves all of the WDW activities for children (her favorite is the GF's Grand Adventures In Cooking Class, which I find amusing since I don't cook).
In a trip report two years ago, I wrote about my daughter's experiences with each of the GF's Children's Activities. I'll give links to those posts below. Please note that in those posts you will find links to my photos of the events.
My Disney Girl Princess Grand Tea Party (look for post entitled, "Grand Floridian Day Two, Part 1")
Pirates Cruise (look for post entitled, "Grand Floridian Day Three, Part 1")
Wonderland Tea Party (look for post entitled, "Grand Floridian Day Three, Part 2")
Grand Adventures In Cooking Class (look for post entitled, "Grand Floridian Day Four, Part 1")