I have been to the flowers' auction a couple of time and had a wonderful time: the array of colours, parfums and patterns are wonderful to watch. Gorgeous, exotic and sometimes bizarre specimens arrive here from all over the world and auctioned and shipped to national and international buyers. The public is allowed in from 7.30 to 9.00 and there are both guided and self-guided tours. http://www.floraholland.com/nl/over-floraholland/bezoek-de-veiling/naaldwijk/