The festival that features elaborate floats made from flowers in Holland is known as the Bloemencorso. This annual event occurs in various towns, most notably in Haarlem and Pompenburg. During the festival, intricately designed floats are adorned with a multitude of colorful flowers, celebrating spring and the beauty of nature. The procession showcases artistic creativity and draws large crowds, emphasizing local culture and community spirit. It serves as a vibrant reminder of the region's floral heritage and craftsmanship.