The Greenbush Line is a branch of the MBTA Commuter Rail system which serves the South Shore region of Massachusetts. The 27.6-mile (44.4 km) line (which shares 10 miles of trackage with the Old Colony Lines) runs from downtown Boston, Massachusetts through the towns of Braintree, Weymouth, Hingham, Cohasset, and Scituate to the Greenbush section in southern Scituate. Station stops along the line are South Station, JFK/UMass, Quincy Center, Weymouth Landing, East Weymouth, West Hingham, Nantasket Junction, Cohasset, North Scituate and Greenbush.
Modern passenger service on the Greenbush Line began on October 31, 2007. This service restoration, put in place as environmental mitigation for the Big Dig project, was the first passenger service on the line since 1959. Read more at the Wikipedia article
here.
This is a commuter rail line so muggle activity will be high in the morning and evening. The line does not operate on the weekend so parking is free then. Otherwise you can park and grab or try and offsite location.
Let me know in the log if you find the cache before or after your daily commute.
NOTE: The cache has been placed far from the tracks. Do not go near or cross the tracks to search for a cache.