Have some animal figurines and (kinetic) sand?
Then why not explore the continental habitats of the animal kingdom.
Either using the internet or animal encyclopedias, you and your child can spend a couple hours learning about animals and placing them on their continents. Not only will your child enjoy the sensory experience of playing in the (kinetic) sand but he can practice his geography and expand his knowledge about various species. For the older child, she can write her own labels and be even more specific by placing animals in oceans & seas as well as individual countries.