Manatee 2015 Wall Calendar Manatees wall calendar for 2015. Featuring splendid underwater photography, this Manatees wall calendar offers a rare close-up glimpse of these extraordinary and gentle creatures. 18 month calendar; July 2014 through December 2015. Measures 12 X 12 inches closed, 24 X 12 inches opened. Monthly grids are large enough to record daily tasks and appointments. Includes major holidays and moon phases. Perfect for anyone who loves Manatees!