The coral world of the Red Sea arrived in Hong Kong last Friday - via Italian underwater photographer Roberto Rinaldi. Rinaldi was in town for an exhibition of previously unpublished black and white photographs from his work with diving pioneer Jacques-Yves Cousteau in the 1950s and colour photographs from this year's expedition by the Cousteau Society. 'My favourite photos are of the pink coral and the fish - it is the ambience rather than the close ups that I like,' he said. Another of Rinaldi's passions is diving among second world war wrecks. 'Technology now allows us to go much deeper than before. The wrecks are preserved and are exactly the same as the day they sank.' Rinaldi gave his top five diving spots in Asia for diving aficionados to try out: Sipadan in Malaysian Borneo, Manado and Walea in Indonesia, Tubbataha in Philippines and Layang Layang in Malaysia. The exhibition Engineers of the Sea is being held at Park Court, Level 1, Pacific Place. It is being co-hosted by IWC and The Cousteau Society and ends Sunday.