Your unpublished geocaches are listed at the top of your private profile page.   You can't see other people's unpublished geocaches.   You can share the content of your unpublished geocaches with others, and they can share the content of their unpublished geocaches with you, but you can't share the actual listings until they are published. One easy way to share the content of an unpublished geocache with someone else is to print the unpublished listing, but then save it as a PDF instead of a