View to the <a href="https://en.wikipedia.org/wiki/Halligen" class="extiw" title="en:Halligen">Hallig</a>  <a href="https://en.wikipedia.org/wiki/Gr%C3%B6de" class="extiw" title="en:Gröde">Gröde</a>. The Hallig Gröde is an islets in the <a href="https://en.wikipedia.org/wiki/Schleswig-Holstein_Wadden_Sea_National_Park" class="extiw" title="en:Schleswig-Holstein Wadden Sea National Park">Schleswig-Holstein Wadden Sea National Park</a>. Hallig Gröde  is not protected from <a href="https://en.wikipedia.org/wiki/Storm_surge" class="extiw" title="en:Storm surge">storm surges</a>, she is flooded completely twenty to thirty times a year. The Houses are built on high <a href="https://en.wikipedia.org/wiki/Artificial_dwelling_hill" class="extiw" title="en:Artificial dwelling hill">mounds</a> with dykes. Therefore they can withstand the <a href="https://en.wikipedia.org/wiki/Storm_surge" class="extiw" title="en:Storm surge">storm surges</a>. The Hallig Gröde has two mounds. The Knudtswarft (left) has four buildings and a pond with rainwater.  The Kirchwarft (right) has the graveyard and one building with the church and the school.
<a href="//commons.wikimedia.org/wiki/User:Michael_G%C3%A4bler" title="User:Michael Gäbler">Michael Gäbler</a>
<span class="int-own-work" lang="en">Own work</span>