Bideford Bay
... that the coastline of Bideford Bay incorporates both 60-metre (200 ft) high cliffs and one of the largest dune systems in Britain?
... that the coastline of <b id="mwA7c"><a href="./Bideford_Bay" id="mwA7g" rel="mw:WikiLink" title="Bideford Bay">Bideford Bay</a></b> incorporates both <span about="#mwt21" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"60"},"2":{"wt":"m"},"adj":{"wt":"on"}},"i":0}}]}' id="mwA7k" typeof="mw:Transclusion">60-metre (200</span><span about="#mwt21" typeof="mw:Entity"> </span><span about="#mwt21">ft)</span> high cliffs and one of the largest <a class="mw-redirect" href="./Sand_dune" id="mwA7o" rel="mw:WikiLink" title="Sand dune">dune systems</a> in <a href="./United_Kingdom" id="mwA7s" rel="mw:WikiLink" title="United Kingdom">Britain</a>?