By Rebecca Lewis @RebeccaSLewis
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Footage: Charles Maxwell
Producer: Nick Johnson
Editor: Ian Phillips
The jaws chomp downwards in a flash and the last thing you see are gums, gills and a watery stomach cavity.
This is what it feels like to be ambushed and eaten by the world's largest predatory fish.
The amazing close-quarters footage of a great white shark attack was captured using just a remote camera towed behind a small boat.
This 4m shark had been lurking nearby when it attacked the would-be seal.
Luckily the boat didn't capsize and the only damage was to the tow-cam’s fibreglass case.
This is just one of the amazing underwater sequences captured by Charles Maxwell, a 68-year-old cameraman and diver who lives in Cape Town, South Africa.
Elsewhere, he filmed dozens of cape fur seals follow the boat’s path along the seabed while a pod of curious dolphins also join the ride - as well as scores of other marine life.
The footage was collected over several trips off the Cape Town coast.
The Emmy-award-winning cinematographer said: “I can monitor and control the camera from the boat so I see it all in real-time, which can be quite scary at times.
“I found that the white sharks often hit the towcam from the side, in the same way that they attack a seal.
“Then, without warning, the camera angle goes berserk and the attaching cable pulls taught with such force that the boat is slowed down.
“When I put out to sea, I never know what to expect to encounter as our seas are so rich in marine life. For that reason I often have my towcam on board in case a suitable opportunity comes along.”