The Clare Valley is actually a series of narrow north to south valleys, each with a different soil type and slightly different weather patterns along their stretch. In the southern heartland between Watervale and Auburn, there is mainly a crumbled, red clay loam soil called terra rossa and cool breezes come in from Gulf St. Vincent. A few miles north, in Polish Hill, is soft, red loam over clay; westerlies blowing in from the Spencer Gulf influece this area's climate.