New Zealand and South Seas International Exhibition, 1925-26 The principal (south) elevation of the New Zealand and South Seas International Exhibition, 1925-26. Panorama from L.S. Fanning, The Pictorial History: The N.Z. and South Seas Exhibition Dunedin, Dunedin, 1926. On November 17 it will be 100 years since the New Zealand and South Seas International Exhibition opened at Logan Park, showcasing the manufacturing, educational, governmental and artistic achievements of Dunedin, the province and Aotearoa - but also the Empire and the world.