Hart-Miller Island is naturalist's playground and an ecological success story. The tour, organized by the Natural History Society of Maryland, will be guided by Maryland Environmental Services. The 15-minute boat ride from Essex will be followed by a bus tour of the facilities and a discussion of the history and construction of the island, the importance of the Port of Baltimore, and the need for dredging. A full tour takes about two to three hours (including boat transportation) with a…