San Francisco-area landscape artist Andreas Amador etches massive sand drawings onto beaches during full moons when his canvas reaches its largest potential. Using only a rake and often several helpers the geometric and organic shapes are slowly carved into the sand, often interacting with the physical topography like the stones in a zen garden. The works exist for only a few moments, just long enough to snap a few photographs before being completely engulfed by the encroaching tide.

(Source: thisiscolossal.com)