Duin- en Bollenstreek

The Duin- en Bollenstreek (Dutch for "Dune and Bulb Region") is a region in the western Netherlands, that features coastal dunes and the cultivation of flower bulbs. Situated at the heart of historical Holland nearby the city Leiden, South Holland, and boundered by The Hague and Haarlem, the combination of beaches, flower fields, lakes and history makes this area attractive to tourists.

The Dune and Bulb Region stretches from the area around the lower reaches of the Old Rhine west of Leiden to just south of Haarlem. Since it is not a municipality or administrative region, the region's borders are not clearly defined. The Dune and Bulb Region proper is made up of the towns from Katwijk to Hillegom, and from the coast to the Kaag Lakes. Officials consider six municipalities to be part of this region: Hillegom, Katwijk, Lisse, Noordwijk, Noordwijkerhout and Teylingen. However, towns just outside these boundaries also consider themselves to be part of this region. Most of the towns in this area are in an administrative region called "Holland Rijnland", a regional collaboration (samenwerkingsverband) consisting of various municipalities in the Duin- en Bollenstreek and the Leiden area.

This area is the southern part of a larger flower-growing area called the Bulb Region (Bollenstreek). However, it is not unusual for the Dune and Bulb Region itself to be referred to as the Bulb Region.

The region is characterised by wide sandy ridges of flat land (cleared from dunes from 1650 to 1955 for agricultural use and human habitation), sandy soil between the dunes and polders (geestgrond), bulb fields and pasture land (weiland), all of which is protected from the North Sea by an extensive dune area.

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