15/10/1957 - 14/10/1958

Underwater exploration in the Red Sea and at Socotra in the Maldives, the Nicobars and the Straits of Malacca; "Expedition into the Unknown, A Report on the Expedition of the Research Vessel Xarifa to the Maldives & Nicobar Islands and on a series of 26 Television Films", by Hans Hass (published in London, 1965);