Surfrider Foundation offers you
FREE wallpaper images that you can save as your desktop background
image (also called your computer's 'wallpaper'). Here's what you do:
Windows PC Users: If you're using Internet Explorer,
right click on your selected image below and choose "Set
as background." If you're using Firefox Mozilla, right click on your selected
image below and choose "Set as desktop background."
Mac Users: If you're using Mozilla Firefox, Control-Click
on your selected image below and choose "Set as Desktop Background." If
you're using Safari, control-click on your selected
image below, save to a new folder on your desktop,
then in "System
Preferences" go to "Desktop & Screen Saver" and
then pick the choice "Choose Folder" and choose the new folder with
your just-saved image.