Family of 5.... I know these will be impossible to get (hoping since its an 8 day trip) -- but ages of kiddos are 19, 17 and 12 - this will be trip #20 and kiddos realy want to so something different. Anone done but Savor the Savanna and Wild Africa Trek? What is the difference? also what about Starlight? Thinking they may not even enjoy the Savor?