A large body of water is considered as an interesting subject for photography in night time. It is considered so it becomes a blank canvas. Light reflection off the surface of the water body creates unique textures and vibrant colors. If this is photographed with a long exposure, it becomes amazing.
When you have decided to take photograph of a water body, the first thing is to find out a location where there is a good combination of water and available light. There are many options like a lake, river, harbor, bay, waterfall and the ocean. Photo above by: https://www.dylanmhowell.com
After you have decided about the location, find interesting light sources. This source of light would create different patterns, shades and textures on the surface of the water. The light, coming from whichever source, would brighten up a body of water. This light can come from bridges, tall buildings, the moon and the stars. You can get different colors and shapes if you take photographs in different locations.
For photography dynamic weather is a good thing as unexpected weather conditions create unique images. The variation in the quantum and nature of fog is never going to be exactly the same way again. This simple thing can alter the quality of the photograph.
Find out a proper place for the shoot. It is advisable to take one nighttime image in normal weather and another when there is high wind or storm. If you compare these two images, you would find a huge difference between these two images. Now you have to decide which one you prefer.
Here is just a gentle reminder. Before setting off for the photo shoot, you better consult the timing of the high tide as if there is one during the shoot, you may spoil your equipments.
For creative photography, you should avoid the use of automatic camera setting. There is conflict between the thought process of the photographer and the camera. So, if you want to shoot what you want and not depend on the decision of the camera, you have to avoid automatic feature. You get much better photographs through this. You have to aim to have a photograph where the water motion is evident whereas the rest of the picture is still.
To capture the motion of the water, a slow shutter speed should be chosen. You have to remember that with slower shutter speed, you can capture greater motion.
While using a slow shutter speed, your camera needs to be absolutely still. This is required to avoid camera ruining the picture due to shaking. The best way to establish a stable platform is to use a tripod. You should set your ISO to about 100. This combined with a small aperture of around f/22, would give you results in the slowest possible shutter speed for the ISO and light conditions.
In order to get a clear water photograph, you would need to have the accurate level of light. You have to remember that as most flowing water images are done outdoors, you should prepare yourself for different types of weather. You need to be able to work with natural light.