MergelRijk - de leukste grot van Limburg

"If you prefer walking in hills instead of over them, you might fancy yourself a trip to Valkenburg. Many Dutch people will go here at least once in their life to wander through the caves. Especially in winter, Valkenburg is a hugely popular spot. Between November and January, the most accessible caves will be filled with lights and Christmas stalls. Of course, the hiking and cycling options remain good all year round. You might find the area to look very non-Dutch due to the amount to (sometimes quite steep) elevation. Especially south of Valkenburg is good if you want to be above sea level! Do be aware that the hills come with a flooding risk in the wet seasons. Mountain water from southern Germany has caused big problems in the province of Limburg before. But don't let that stop you from admiring the charm of an area that couldn't be more different from Amsterdam!"