We especially recommend this tour in spring when the bulb flowers come into bloom! The province of North Holland is the land of tulips, cheese and windmills. More than half the province consists of reclaimed land, up to 6 meters below sea level in parts! The oldest polder (1612) is a UNESCO World Heritage Site. Polders are known as cultural landscapes: designed and created intentionally by man. On this route we will guide you through the history of this part of the Netherlands from roughly 1000 A.D. through the prosperous 17th Century to the modern day in which the government is taking action to protect the country against rising sea levels.