need help figuring out the title of a underwater documentary

I am trying to remember the title of a underwater documentary that I watched about a year ago. I can't remember which nature channel I saw it on. What I do remember is that it showed two guys freediving to 90 ft and capturing a tiger shark and oceanic white tip on video followed by the same two guys freediving in one of the sardine runs and also capturing it in video.

I am trying to remember the title because I found it quite amazing that these guys didnt even use scuba gear, and I thought it would be great to watch it again.

Thanks to those who respond.

I am trying to remember the title of a underwater documentary that I watched about a year ago. I can't remember which nature channel I saw it on. What I do remember is that it showed two guys freediving to 90 ft and capturing a tiger shark and oceanic white tip on video followed by the same two guys freediving in one of the sardine runs and also capturing it in video.

 

I am trying to remember the title because I found it quite amazing that these guys didnt even use scuba gear, and I thought it would be great to watch it again.

 

Thanks to those who respond.

Well,

if someone would ask me about film, tiger sharks and free diving (and freediving) I would recommend to check the website of Mr. Ralf Kiefner and Ms Andrea Ramalho. Beautiful and very talented people...

http://www.ocean-pix.de/

Best,

Jules