Greenpeace New Zealand activists lock themselves on board government research boat, the Tangaroa, as it prepares to leave Wellington Harbour to conduct oil exploration. The ocean and climate science boat has been refitted for oil and gas exploration by the Government at a cost of $24 million to the tax-payer. On the eve of the Paris Climate Conference, the Tangaroa is surveying the East Coast of the North Island on behalf of petroleum giants Statoil and Chevron.