Oceans presenter Paul Rose describes his top dive experiences from the series, which include a coral, night, cave and deep dive.
Atlantic Ocean: Paul dives deep into strange layers of density, smell and colour in this "dive of a lifetime", one he doubts he'll ever do again.
Mediterranean Sea: A disorientating dive into black transforms into "gin" clear waters with beautiful rock formations.
Mediterranean Sea: Paul holds his nerve during a close encounter with a six gill shark, a species that has survived 200 million years.
Red Sea: Fluorescent coral captivates Paul as they use blue beams of light to investigate the peculiar properties of this special coral.
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