Beginning in Franklin Park, this free six-hour National Park Service walking tour on Sunday, June 7 from 8 – 2 will examine Olmsted’s masterpiece of linear park design, The Emerald Necklace. Pastures, ponds and parkways were woven into the city’s fabric and combined both state-of-the-art engineering with artistic sensibility. The walk will end in the Back Bay Fens where people can ride the “T” back to Franklin Park or anywhere they wish. Bring a lunch. REGISTRATION is required – please visit http://www.nps.gov/frla/planyourvisit/walks-and-talks.htm. We don’t need to emphasize that comfortable shoes are a must.