Moon Falls was a very popular vacation spot on the sanctuary moon of Endor. An upper lake fell toward the lower lake, but the upper lake was so high up that by the time the water got to the lower lake it was already mist. When the falls were facing away from the planet, the gravity stopped the water from falling from the upper lake altogether. The falls were twenty kilometers wide. After the attempted assassination of Allana Solo, Jacen Solo planted fake memories of the falls into Ben Skywalker's mind to keep his daughter's identity a secret.