In fact a large part of the Netherlands was created by the sand that came from the many rivers flowing through it. Notable Dutch rivers are the Rhine, the Maas, the IJssel and the Scelt. A large part of the Netherlands is below sea level. This is because the Dutch have made many lakes and parts of the sea dry, creating polders. Therefore, there is a saying "God created the earth, but the Dutch created the Netherlands." This makes the Netherlands very flat. In the very south-east of the Netherlands, in Limburg, there are some hills. Therefore, this region is a tourist-attraction for many Dutch people. The highest point in the European portion of the Netherlands, the Vaalserberg, is 323 metres above sea level. The highest point in both the Netherlands proper and the Kingdom of the Netherlands is Mount Scenery, on the Caribbean island of Saba, at 887 metres.