In the remote South Atlantic ocean scientists, divers and activists brave dangerous conditions in search of an underwater mountain. Its unique marine life is rumoured to be flourishing after an extensive ban on fishing. This Greenpeace research mission is part of its year long pole-to-pole expedition to lobby the UN for an international legally-binding treaty to preserve the oceans. AFP journalists joined the NGO on a nearly two-week trip to see the revival of Mount Vema and get to know the men and women who sacrifice life on land for ocean conservation.