Ken O'Sullivan's Undersea Journeys 

Ken O'Sullivan Underwater cameraman, documentary filmmaker on Ireland’s Atlantic coast. Freediving with sharks, humpback whales, Minke whales feeding, fin whales, blue whales, pilot whales.

Many natural history firsts. Discovered and filmed basking shark courtship torus for first time ever in the world. First to film humpback whale bubblenet feeding underwater, fin whale underwater Ireland, and many other animals and behaviour for the first time, porbeagle sharks, stingrays and undulate rays in Ireland. 

Multiple blue whale photo identification matches in the North Atlantic.

All of this work goes toward research and conservation, helping us understand and protect these precious animals.

Conservation focussed documentary films since 2006, I donated all of my work to education and it is now on the formal education curriculum in Ireland.

Author critically-acclaimed book - Stories from the Deep