The idea of that puzzle is to create your own landscape by your hands. 
Inside the box (90*60*15cm, 35in*24in*6in) there is a sand (75kg, 165lbs). Above that box there are camera and projector. 
By analysing landscape of the sand colours are changing, like on a geographical map (blue for water and green/red for land). Player can change the landscape by their hands, just playing with sand. If he make rather big pit, water will appear there. With special gesture player can «add» or «remove» water. Also he/she can pour water from one pit to another. 
So, from the beginning with flat and green/yellow surface player create his own world with mountains, canyons, rivers and lakes. 
Great for educational and entertainment purposes!