He probably only painted the tip

COPENHAGEN, Denmark - An artist with 780 gallons of red paint, three fire hoses and a 20-member crew at his disposal went to Greenland in search of a blank canvas large enough to accommodate his creative impulse.
The result is a blood-red iceberg now sitting off the country's western coast.

A photo can be seen here at the artist's Web site.

A little about the artist:
Evaristti, who was born in Chile, drew widespread attention - and disdain - when he displayed 10 working blenders filled with goldfish in a Danish gallery in 2000.
He invited guests to turn the devices on and someone did, grinding up a pair of goldfish.
The gallery director was tried on charges of animal cruelty, but acquitted.