16:45CoastSeries 7 (Shortened Versions)Episode 7: The Riddle of the Tides 2BBC Two Duration: 31 minutes Fri 9th Oct 2015, 16:45 on BBC Two WalesNick 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