Use the following steps to delete a diving photo:
Login to your account. Click the “My Account” link in the top right, then select the “My Contributions” tab. Next, choose the diving photo 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 photos by selecting “Diving Photo” from the contribution type dropdown in the search box and selecting “Apply”.
Once you're on the details page for a diving photo, select the “Edit” link, then select the “Delete” button, and finally confirm the delete request.