How to eliminate water reflection when shooting?

There are several considerations for shooting underwater scenery through the water surface: 1) The water quality is very good. If the water quality is not good and the transparency is not high, then even if there is no reflection on the water surface, you can't achieve your goal. There are many floating objects, pollutants, aquatic organisms, algae and so on in the usual natural water body, which causes the turbidity of the water body. So your difficulty lies not only in reflecting light, but also in the turbidity of water. 2) The crystal clear lakes photographed by people are in some inaccessible places, such as Qinghai, Xinjiang and Tibet. The lakes in these places are not polluted and have high transparency. It is easy to see the bottom of the water. 3) Choose underwater shooting. Use a special waterproof camera or video camera. There are also waterproof suits for sale. Then sunshine is your good friend. The stronger the sunshine, the better the effect. 4) Choose to shoot before the sun comes out in the morning. Especially in mountainous areas, when the surrounding light is blocked by mountain shadows and the sun doesn't come out, it can be seen underwater. 5) Choose the water covered by trees. When there are trees all around, you can't see the sky, and a beam of sunlight shines obliquely into the water from the Woods, then you will see the bottom of the water. 6) Choosing the direction of backlight can reduce the reflection of water. When strong light (such as sunlight) comes from the opposite side of your camera, the reflection on the water surface is the strongest.