Woods Hole Oceanographic Institute. We took the reservations only guided tour through their labs and across the institute’s docks. We saw Alvin, the manned deep sea submersible. Actually we saw the old one and the new one they are building. In March 2013 it begins diving trials with an ultimate goal of 21,000 feet. They do some impressive work from a really tiny space…maybe 6ft diameter sphere inside that houses 3 people. Can you say claustrophobic?