Greenpeace volunteers paint themselves blue before performing an 'ocean wave' at an event in the lead-up to World Oceans Day at the Byblos Citadel in Byblos, Lebanon.

From Santiago to Bangkok, London to Johannesburg, Greenpeace volunteers and supporters create human waves across 23 countries to call for the protection of our seas and the creation of a network of ocean sanctuaries covering 30% of international waters by 2030.