Last summer I was allowed to visit the very nice city of Leiden for a day for my birthday. This region is not called the Region of Surprises for nothing, because there are so many fun things to see and do here. I was pleasantly surprised when I was invited to visit Katwijk and the surrounding area, together with my 11-year-old son Job. With an overnight stay in the Pop-Up Cottage, a house on wheels that travels through Oegstgeest, Leiden, Wassenaar, Voorschoten and Katwijk. The last stop of the cottage was at Holiday Park Koningshof in Rijnsburg (Katwijk) where we ...