The 51-year-old Rainer Schimpf was filmed with his legs hanging out of a whale's mouth. Here, at certain times of year, gannets, penguins, seals, dolphins, whales and sharks all work together to rally fish into bait balls for easy catching.
The whale started to dive with Mr Schimpf inside.
"Nothing can actually prepare you for the event when you end up inside the whale and then it's pure instinct", Schimpf said. "Seconds decide in Nature whether you get a good shoot, seconds decide if you become prey, seconds decide your survival and seconds are all that counts", he said.
This was a Bryde's Whale, a species that can grow to 55 feet long and weigh up to 30 tons. "I instantly knew a whale had grabbed me".
"Pumped up with adrenaline and not wanting to miss the bait ball action, I went back into the sea, this time looking for sharks", he added with a smile.More news: Akash-Shloka wedding: Antilia decked up with flowers
"I held my breath because I thought he is going to dive down and release me much deeper in the ocean, it was pitch black inside", he added.
"I now have inside knowledge of a whale which nobody else has", Schimpf concluded. "Suddenly the whole world around me got dark and I felt enormous pressure around my waist, in the area where my weight belt was situated and I knew instantly what had happened - a Bryde's Whale had accidentally included me in its mouth with its meal of the day", Schimpf told local news outlet Mype News.
"Whales are not man-eaters. They are gentle giants, and it was just an accident". All three have been swallowed by whales. "They also feast on bigger crustaceans such as crabs and shrimps, as well as a variety of small schooling fish", Whales.org says.
The largest measured Bryde's whale was 15.51m off Saldanha Bay, South Africa in 1977.
"Had it been a shark it would have been two of me, and I don't think that I would have seen anything again", Mr Schimpf later told 9News.