Tours, Arnold Arboretum, Jamaica Plain

Enjoy free Arboretum tours on Wed.'s, Sat.'s, and Sun.'s - and on Fri. evenings. Tours start at the Hunnewell Building, 125 Arborway, Boston. Times vary. Families can also take the self-guided tour with a plant treasure map in celebration of the 100th anniversary of Ernest Henry Wilson's first Arnold Arboretum expedition to Asia. Collect the map at the Hunnewell Building or download it at www.arboretum.harvard.edu .