This is another so-called hill left behind by the Ice Age – five kilometres long with a height of between 15 and 30 metres and with high hillocks and steep hillsides. Te most distinct part of the hill can be found between Lake Pinti and Lake Šeški. The pine forests on the hillocks are a habitat with many rare and protected species. A trail has been established to tour Grebļa Hill, as well as Āža Hill and Kausu Hill, but it is recommended that visitors travel the trail in the company of a guide. The biological diversity of the area is made clear if one knows, for instance, that more than 500 kinds of butterflies have been found in the restricted territory.
