As of May 2015, deck plans for the Carnival Sunshine cruise ship are available on Carnival.com. From the homepage, go to the Explore tab and click on Our Ships. On the next page, scroll to the Carnival Sunshine.
On the Carnival Sunshine page, click on Deck Plans. This displays the three layers that make up the ship. Hit the See Deck Plans button.
On the following page, click on one of the decks to access its floor plan. Change the size of images by using a plus and minus scroll. Click on a specific deck feature, such as a pool, to view photos of it.