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.
Germany
Documentary
84 minutes
1947
Hans Hass
Hans Hass-Filmproduktion
2016
7.1
1968
7.8
0.0
2003
6.8
2020
4.0
2014
0.0
2018
5.1
2003
6.6
2014
7.3
1956
0.0
2003
6.9
2023
7.6
2019
0.0
2010
0.0
2018
10.0
2002
6.7
2000
5.5
2020
6.7
2014
6.6
2020
9.0