Numerous sand dunes rise from sandy stretches, interspersed with sandstone outcrops. Geology is varied and can include limestone forming the eroded tsingy outcrops. Open areas including rocky outcrops, fields, pastures, and sparsely wooded hillsides comprise their habitat. There are hollows between the limestone outcrops. Nests are also common in lateritic ridges, granite outcrops and clay formations. Bands of limestone emerge from the Earth's surface in often spectacular rocky outcrops and islands. The valley is surrounded by rocky outcrops and moorland. They live in forests and deserts, rocky outcrops, and hillsides. There are relatively small outcrops of Triassic sandstone at Broad Bay near Stornoway. Limestone outcrops rise on the outskirts of Ipoh. Cacti can be found on rocky outcrops and valley bottoms. The Lowveld is relatively flat with interspersed rocky outcrops. They are obligatory calciphiles living in isolated colonies on limestone outcrops. The coast is largely soft sand occasionally interrupted by rocky outcrops. Covered with chaparral, oaks and sandstone outcrops, they make a scenic backdrop to the town.