The area around the Keukenhof Gardens is known as the Bloemen Route, or “Flower Route”, this is the highest concentration of tulip fields. The route runs for about 30km south of Haarlem to Leiden, with the town of Lisse in the middle. All around are small patches of flower fields, bursting with colors. Many fields are quite difficult to get to – guarded by fences and water canals and surrounded by houses and buildings. Plus hordes of tourists in cars.