Use the following steps to delete a diving video:
Login to your account. Click the “My Account” link in the top right, then select the “My Contributions” tab. Next, choose the diving video that you wish to delete from the list.
If you have too many items in your list, you may limit the items displayed to only reflect diving videos by selecting “Diving Video” from the contribution type dropdown in the search box and selecting “Apply”.
Once you're on the details page for a diving video, select the “Edit” link, then select the “Delete” button, and finally confirm the delete request.