First it was Dave Matthews and Sean Penn, now Greenpeace.

More proof that liberals and boats are not a good combination.

Marine park rangers in the Philippines say Greenpeace is to be fined after its flagship Rainbow Warrior II damaged a coral reef during a climate change awareness campaign.

The ship and its crew were handed a $A15,543 fine after the 55-metre motor-assisted schooner ran aground at the Tubbataha Reef Marine in the central Philippines.

Park manager Angelique Songco says the ship's bow sliced through a reef formation measuring 160 square metres.

A Greenpeace official in the Philippines describes the incident as accidental, and says it will comply with the marine park authorities' ruling.

Lest we forget. Matthews' diver and Penn's daring aquatic rescue.