Natation : 'How I became friends with an octopus'

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Imagine befriending an octopus, swimming alongside the much-feared great white shark, having your face stroked by a rarely seen clawless otter and cradling a wild rock fish in your hands. These fascinating, life changing experiences have been documented by South Africans Craig Foster and Ross Frylinck in a newly released book entitled Sea Change - Primal Joy and the Art of Underwater Tracking following eight years of diving without wetsuits and scuba gear in the icy waters of Cape Town. Mr Foster said he developed an amazing relationship with an octopus during the course of his daily dives into what he described as the "golden" underwater kelp forest outside Simon's Town, which lies on the Atlantic side of the Cape peninsula.

"I had the privilege of visiting this incredible animal for almost a year. It totally trusted me, lost all fear, it would take me on hunting expeditions and let me into its secret world. "Octopuses have different personalities, some are quite bold, others very shy, she was in between," Mr Foster told the BBC, describing how she would come over and greet him when she became accustomed to his visits. "It is a great privilege to step into that world to learn - not like a mammal - but like a fellow spineless creature in her invertebrate world," he said. Her den was mainly a hole she had dug in the ocean floor, which the diver described as a "proper home". "She hunts over 50 species but you can only find that out when you're allowed into her den and can pick up the bones of the animals she has eaten," he said, referring to the lobster and crab shells he saw. "You realise, my goodness, her life is so detailed and crazily connected to everything around her." 'Human are not on a shark's menu' The diver has also had amazing encounters with great white sharks, possibly some of the ones that have been responsible for attacks on surfers and bathers on surfers and bathers in nearby False Bay over the years. Unlike the aggressive hunters of human flesh they are often portrayed to be, he paints a totally different picture of a magnificent serene animal.

"When the great white sees a human it scans us, its search image is picking up something that's not prey. They are not sure what we are, they may be curious but it's not something that's good for them to eat and they know that. "They aren't animals that are after us, if they were, there would be attacks every day. If they see a seal, a fish or some of the other prey that's a different story but humans are not on their menu. "The one attack a year is an aberration. There's something in that person they attack that's triggering a response in that shark, it's incredibly rare. Maybe it's the muscle tension that's high, maybe the shark is in a bad mood.