If Keukenhof garden is not enough for you and want to explore those lovely colourful flower fields around, then renting a bike is a best option.
There is Rent a Bike van Dam Company just outside of entrance to the park, can’t miss them, they are all painted bright orange colour. Rental is 10€ a day, and you can choose from several trips depending on your condition. Length of them vary from 2 to 25km. Lovely and friendly owner of that rental place recommended to choose as first, one called “Flower fields of South” and it was a nice 25km drive. Check out map of routes here.
Route will lead you around one of the most beautiful flower fields i've ever seen towards small village Voorhout and then around Sassenheim back down to Lisse and Keukenhof. It was totally awesome ride and even most of the fields are not open for public i'm sure you'll find the way how to get close enough to take pictures :)
As a last remainder, again don't forget to buy some drinks and snacks in advance, there isn't much places around to buy them. Hope you'll get nice pictures.
*this article was imported here from my old tumblr post.