Create a hyper-realistic wildlife photograph featuring a majestic herd of elephants in the savanna during the golden hour. Use a 70-200mm telephoto lens with an aperture of f/4 to achieve a shallow depth of field, keeping the elephants in sharp focus while gently blurring the background. Set the ISO to 800 and shutter speed to 1/500s to capture the low light conditions and freeze any subtle movements. The elephants should be gathered near a serene water body, with some drinking and others interacting, their textured skin illuminated by the warm, golden light of the setting sun. The reflections in the water should create a stunning visual effect, enhancing the tranquility of the scene. The savanna stretches out in the background, dotted with acacia trees and tall grasses swaying gently in the breeze. The overall atmosphere should evoke a sense of majesty and peace, showcasing the beauty of these magnificent creatures in their natural habitat. In post-production, enhance the warm tones through color grading and apply HDR effects to ensure the final image is ultra-realistic and high definition, suitable for professional wildlife photography.