PARKS & NATURE
Founded in 1872 and administered by Harvard University, the historic arboretum designed by Frederick Law Olmsted is a great escape from the city, and consists of 281 acres filled with trees, flowers and plants from around the globe. Open daily sunrise to sunset. Visitor Center open Th-Tu 10 am-5 pm. 125 Arborway, Jamaica Plain, 617.524.1718.
BOSTON HARBOR ISLANDS
National Park boasting 34 islands with 12 open to the public. Woodlands, marshes and rocky beaches with views of the downtown skyline. Cruises, lighthouse and ranger tours, hiking and camping available. Boston Harbor Islands Pavilion, Rose Kennedy Greenway at Long Wharf, 617.223.8666.
MOUNT AUBURN CEMETERY
America’s first landscaped cemetery. Many 19th-century forward thinkers buried: Mary Baker Eddy, Isabella Stewart Gardner, Oliver Wendall Holmes. Programs and tours. Grounds open 8 am-6 pm; visitor information, M-Sa 8:30 am-4:30 pm. 580 Mt. Auburn St., Cambridge, 617.547.7105.