Den Helder is a municipality and a city in the Netherlands, in the province of North Holland. Den Helder occupies the northernmost point of the North Holland peninsula. It is home to the country’s main naval base. The Royal TESO ferryboat service operates the transportation den link between Den Helder and the nearby Dutch Wadden island of Texel to the north.
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Den Helder has played an important part in Dutch shipping. The lighthouse Lange Jaap was built in 1877 and is the tallest cast-iron lighthouse in Europe, at 63.45 meters (208.2 ft).