(Watermill Express, 8', FL-56-02) E. of Port St. Lucie, St. Lucie County, FL. St. Lucie West Blvd (becomes Prima Vista Blvd) E. 6.0 miles from jct with I95 exit 121, N. on US1 0.65 miles to the bldg on the W. side of the road. (N27 20.121 W80 19.578) Photo by Jack & June Schmidt 6-13-10.