This video is called Lotte Hass snorkeling, vintage film.
From Wildlife Extra:
Lotte Hass, one of the world’s first female divers, has died
She passed away at the age of 86 on Wednesday, 14th January 2015 after a happy and multi-faceted life.
The first woman to dive with autonomous diving equipment, Lotte Hass entered a formerly male dominated field in 1949 and opened up a whole new world for women.
Against strong opposition she first starred as underwater photo model before moving behind the camera to become an underwater photographer.
Spectacular scenes that showed her diving with sharks certainly contributed to the success of her husband Hans Hass’ films in the 1950s, and a greater understanding of sharks with the public.
The importance of her extraordinary lifetime achievements were highlighted by the 2011 screen adaption of her autobiography A Girl on the Ocean Floor.
The Institute has asked those who want to acknowledge the accomplishments of Lotte Hass as a diving pioneer to support SHARKPROJECT, an organisation that is dedicated to preventing the destruction of the oceans and the extinction of sharks.