Curious about the remarkable diversity of tree species in Hoboken's parks and along its streets? This is your opportunity to learn from an urban forester and ecologist. For the second year in a row, the City of Hoboken and Hoboken Shade Tree Commission will host an Arbor Day Tree Tour. The three-hour tour will begin at 9:00 a.m. on Friday April 28. Meet at the Multi-Service Center at 124 Grand Street, Hoboken.