Friends of Laurelwood Arboretum will offer free guided tours of Laurelwood Arboretum on Sunday, May 21st at 12:30 p.m. and on the third Sunday of every month through October. To join a tour, meet at the Knippenberg Center for Education at Laurelwood Arboretum, 725 Pines Lake Road West in Wayne. Trained tour guides will lead visitors through the arboretum, identifying many of the unique trees and plantings. Carts will be available for those who do not wish to walk.