I know that Amanyara in Turks and Caicos has a kids club. Have not been there myself, but have been at Amanpulo, Phillipines, which (as far as I know), is the only other Amanresort that has such a kids club. In the Philipines we saw pretty young children in the kids club, looked after by Amanpulo nannies. If you think Amanyara is a good option, I would email them and get the details of their programme.