http://photogenicimage.com/wp-content/uploads/2011/11/The-Tasman-Peninsula-Tasmania-Australia.jpg (http://photogenicimage.com/wp-content/uploads/2011/11/The-Tasman-Peninsula-Tasmania-Australia.jpg)
Nice picture, unfortunately there's no way to get those hexagonal/pentagonal vertical columns.
No doubt you know what you're talking about, TU. But, could we use objects instead?...sort of a lame way to do it, though.
Looks very similar to the Giants Causway (http://en.wikipedia.org/wiki/Giant%27s_Causeway). You could do something with Veronoi but it would be fake (very) and it would not have a regular hexagonal cross-section. Might work at a distance.
Great photo by the way, looks a lovely place to visit, elemental and tranquil.
Cheers
Richard