Victoria Amazonica Water Lilies, Guyana.Where there are ponds and lakes in the Rupununi region of Guyana there are likely Victoria amazonica water lilies — the second largest in the world, with pads that can be ten feet in diameter and flowers that are sixteen inches across and weigh up to three and a half pounds. Victoria amazonica blooms at night. The flowers start out white and turn pink after releasing pollen. We watched as these flowers took about ten minutes to fully open and I used multiple flashlights to illuminate the scene. Nikon Z8 with Nikkor Z 24-70 f/2.8 lens, ISO 5000, f/2.8 at 1/30th of a second, flash lights.