Travel series. The mysterious underwater world of the sea has drawn so many addicts to scuba dive, snorkel orfree dive that it's amazing there's still room forthe fish. With 10 million divers registered in the USA alone, Arthur Smith considers what draws people below the waterline.
Producer Sara Jane Hall. PHONE: [number removed] WEBSITE: www.bbc.co.uk/radio4/excessbaggage E-MAIL: excessbaggage@bbc.co.uk