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Semporna, Malaysia
I was swimming against a strong current as fast as I could, because about 5m below me, in crystal clear waters was a big green turtle swimming in the same direction. After about half a minute, it got bored with the strange creature in the sky with yellow flippers - it surfaced for a quick refill of air, then it was gone in the direction of the coral reef, and I couldn't keep up any longer. It lasted a minute at most, but it was the best experience in Borneo so fa...