The Big Dig Treasure Hunt [Outdoor]

The Big Dig, one of the USA’s most ambitious public works projects, transformed an elevated highway into a tunnel, burying it deep beneath downtown Boston. Construction lasted from 1991 to 2007, finally culminating in a new central highway – an artery that runs directly through the heart of Boston. However, recent news suggests that it wasn’t just the I-93 that was buried. A mysterious advertisement in last week’s paper claims that untold treasure lies hidden beneath downtown Boston. After sending a letter to the mysterious author, you received a note with information on where and when to meet them. You and your friends plan to find the prize, quit your jobs, and abscond into early retirement on a tropical island. Best of luck!