Exploring the oceans by submarine
By Dominique Afacan | 16 November 2018As Rob McCallum heads off on a record-breaking sub dive, he reflects on the appeal of the big deep.
READ MOREAs Rob McCallum heads off on a record-breaking sub dive, he reflects on the appeal of the big deep.
READ MORESubmarines are no longer functional tin cans; advances in design and technology mean that underwater adventures can be made in comfort and luxury.
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