Hi. Maybe if you are going to stay on boat for a few days and there is no aircon in the cabin, where you put your camera most of the time, then maybe you would want to prepare some ziploc bag and some silicon. The air can be quit wet at night. So then you would like to store you camera in the ziploc with silicon gel. Like if you are going for a diving trip or fishing trip where you will stay onboard the boat for a few days.