Evocatively situated on the side of a hill overlooking the Bay of Mirabello are the remains of Gournia, a Minoan town that flourished between 1600 and 1450 B.C. In the early years of the 20th century, a young Bostonian named Harriet Boyd excavated the site (roughly 600 by 450 feet), which consisted of a large building, called the Governor’s House, surrounded by streets and smaller houses.