More excellent advice, thanks. I am glad I can keep the filter on, except when I change to the circular polarizing.

One more thing, since you mention the greasy, salty air. Moist as well, obviously, and as I'm going to bring cameras, lens and all in zip-lock type freezer bags as well as the camera case, I was thinking about throwing dessicant packages in each bag. Do you use dessicant bags or those little canisters? Or is the air so moist it renders them useless? Again this would be in a freezer bag zipped closed most of the time.

I hope that someday we can put aside our fears and prejudices and just laugh at people.