We, too, went on this wonderful trip in 04 or 05 just when the flowers had a few days left because of an early spring rainy season. Still, we got to see fields of color and the wonderful Kuekenhof.
Yes, beware of this place, because it will enthrall you so much you will be tempted to buy bulbs of flowers you dont even have room for! They are masters of display.
If you get bored on any trip, you certainly are not trying!! There is almost one more thing and/or place to see. You can do as much or as little as you want on these river trips. This was one of our favorite relaxing trips. Heck, they all were!!!!!