In this 1947 film by diving pioneer Hans Hass, marine biology work is shown with the help of early diving equipment. During the expedition Hass was able to observe and film shark behaviour and collect plant samles from underwater caves.
2021
2020
2015
1968
2016
2014
2005
1999
2000
2008
1959
2003
1954
1988
1983
1958