Hi, I'm tasked to cover an event next weekend in malaysia. It's some beach/dive site clean up event in Aur by PADI and NAUI. Not taking underwater shoots but I'm taking shoots in moving boats with the possiblilty of water spary.

I need to know is what's a good shuttle speed setting to prevent camera shake due to the rocking of the boat?

In addition, what's a good and cheap way to protect my camera from these spray other then using a ziplock bag with musking tape?

Lastly, what type of negative should I use? I'm thinking of using Fuji press 800 and other possible negative film but don't know which one will be good for the event.....

Please advice?