Sailing and sails, all in one day! Step on board a beautiful ship for a guided cruise up the Nieuwe Maas from Rotterdam, into UNESCO World Heritage Site Kinderdijk. Explore the collection of 19 Dutch windmills, learn about the history of harnessing wind, and return to Rotterdam truly cultured.Sail on to 19 windmills at UNESCO World Heritage Site Kinderdijk!Hop on board the good ship , built in 1908, for a leisurely cruise up the Nieuwe Maas from central Rotterdam. It'll take about 90 minutes, and you can buy drinks and snacks as you soak up the city views and skyline. Your guide will explain the highlights as you pass them, including those impressive bridges.Once you reach Kinderdijk, walk about at your own pace and photograph the 19 windmills. Step inside a working mill, learn about the intricate system that keeps the seawater from flooding the Netherlands, and then board the for a relaxing cruise home. It's escapism at its best. And if you enjoy a couple of beers on the boat, you might learn even about the wind.