Everyday there are free and for a fee arts and crafts. My DGC really like the Community hall at Kidani.
I wish I remembered the schedule for the special crafts, like ceramics, that one is only done on certain days.
There are plenty of Animal Programs scheduled at Kidani and Jambo. One evening DF's and myself went to "Have you Heard" near Pembe savannah, pool area. For this, you match the wildlife sounds to their makers. This is a "bead" activity and you accumulate beads for a special "prize."
There was cookie decorating at 1 in Boma, in January. For adults there's a wine tasting event for a fee on certain days. There's also a Culinary Tour offered every day at Boma and then Jiko. I've done that a few times over the years.
I was with DFs at Jambo for 3 nights in January. My DFs were not interested in going to a park, we are all retirement age, but we never ran out of interesting things to do for adults, and there were always things going on for children as well. Pool parties every day, for instance.
I think you will find lots of things to do at AKV. There's a very convenient shuttle, van, that runs from lobby to lobby, Kidani to Jambo, if you want to get to the other resort.