Echo Hill Outdoor School’s 1901 skipjack ELSWORTH and 1957 buy boat ANNIE D, both based in Chestertown, will be on display at Sultana Downrigging. These traditional Chesapeake workboats are cornerstones of EHOS’s Bay science and history programs and used for a variety of classes and ventures that allow participants to study and discover first-hand the wonder of Chesapeake Bay Ecology.