Imagine having only four hours (http://funzu.com/index.php/crazy-video/sand-artist-peter-donnelly-23042010.html) to create a work of art (http://www.youtube.com/watch?v=ttwxawO0ESc&feature=player_embedded), before the New Zealand high tide washes it away...
Introducing Peter Donnelly, who has been doing this (http://alpinfun.blogspot.com/2010/01/amazing-sand-art-of-peter-donnelly-17.html) for over 18 years...