Need more evidence of how destructive the salt blowing in from the ocean is? Take a look at this.
These clothespins are just about two months old. Plus they are kept indoors in a plastic bag when not in use.
This is the screen on my front door. This is what it looks like when the wind blows from the south or southeast.
The vertical lines are salt. It collects in the screens and then runs down the door, leaving a pool of salt water on the floor.