 : Blue Lake. Clay mining created mining pit. Now uploaded by groundwater and precipitation, so it is small lake. The mine was owned by Pulay family, they used the clay in their brickyard in the 1930s. Now an sports and hobby angling lake in the middle of a park. There is a fence around the lake, because the lake is rapidly deepening and so bathing is not allowed. - Kéktó square/park, <a href="https://en.wikipedia.org/wiki/%C3%9Ajbuda" class="extiw" title="en:Újbuda">11th district</a> of <a href="https://en.wikipedia.org/wiki/Budapest" class="extiw" title="en:Budapest">Budapest</a>.
<a href="//commons.wikimedia.org/wiki/User:Globetrotter19" title="User:Globetrotter19">Globetrotter19</a>
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