Greenpeace ship "Rainbow Warrior III" in Puerto Madero, Buenos Aires, celebrating 25 years of Greenpeace in Argentina

The Rainbow Warrior (sometimes Rainbow Warrior III) is a purpose-built motor-assisted sailing yacht owned and operated by Greenpeace and intended for use in their activities such as environmental protests and scientific excursions. She was christened on October 14, 2011, and has replaced the Rainbow Warrior II after further upgrades and maintenance of the older ship had been shown to be impractical. The vessel is the first Rainbow Warrior that is not converted from another vessel. She was built in Germany, with the intention to both provide state of the art facilities for the group's use, including advanced telecommunication equipment, specialized scientific equipment and a helicopter landing pad. The ship is also designed to be one of the "greenest" ships afloat. It runs primarily using wind power, with a 55 ft mast system which carries 1255 sq meters of sail and is backed up by a "state-of-the-art hybrid". On board the ship can store up to 59 cubic meters of gray water and black water, avoiding the need for disposal at sea. All materials, from the paintwork to the insulation, have been chosen with a view to sustainability, and each component has been supplied with transparent ethical sourcing.