1. The Netherlands consists of mainly flat land, with some hilly areas in the south and east. The northern and western areas are partly below sea-level. The maritime climate is moderate, with an average temperature of 16°C–17°C in summer and 2°C–3°C in winter. 2. The Netherlands comprises an area of some 41,532 km2 (33,889 km2 of land and 7,643 km2 of water), which lies between the North Sea in the north and west, Germany in the east and Belgium to the south. The Netherlands’ highest point is in the extreme south, where the borders of Germany, Belgium and the Netherlands meet. The Netherlands is one of the world’s most densely populated countries with an average of more than 450 inhabitants/km2. The total population is over 16 million (16,733,170) (December 2011) (CBS 2011). A total of 60% of the population lives in the urban core known as the Randstad, comprising the main cities of Amsterdam (capital), The Hague (seat of government), Rotterdam and Utrecht.