16:30CoastSeries 7 (Shortened Versions)Episode 7: The Riddle of the Tides 2BBC Two Duration: 31 minutes Sun 7th Dec 2014, 16:30 on BBC Two HDNick Crane leads the team around Britain in a search for the secrets revealed by the tide.ContributorsPresenter:Nicholas CraneSeries Editor:Steve EvansonExecutive Producer:William LyonsGenresFactualScience & NatureFactualScience & NatureNature & EnvironmentFormatsDocumentariesBrandCoastSeriesCoast: Series 7 (Shortened Versions) Source: BBC Online