Many of us have a chance to shoot on a boat. Many love to fish and take pictures or are just having a trip and cross some water, but whatever the reason, there are a few things which might help you make the most of your water-shooting.
First – if you are using your tripod in water remember a few rules – if you are shooting in fresh water – you might be able to use your tripod inside the water (depending on the exact tripod you have) but you will need to dry them afterwards. If you are shooting in salt waters – you need to be much more careful as salt can and will erode your tripod. Make sure that you wash your tripod with lots of fresh water afterwards and try and see that no salt gets into the legs (there are tripods which are designed for working in water – they are typically more advanced and expensive).
Next think about filters – polarizing filters can help you shoot silky smooth water but are probably not a good idea for shooting wildlife on water. ND graduated filters will help you to pull down the exposure of the sky and water without over exposure (basically extend your dynamic range).
Finally a piece of gear that is almost a must if you are anywhere near water for a long time with your gear is a dry bag. You can find differt sizes and brands – this sea lion 10 liters dry bag seems to be a favorite of many.