On Thursday, July 16, beginning at 10 a.m., join the Trustees of Reservation. Take a guided walking tour of this grand, early 20th-century estate by the sea, and learn how landscape architects Arthur Shurcliff and the Olmsted Brothers transformed a bare, sandy drumlin into a beautiful, country retreat. Explore the farmstead, vegetable garden, formal garden areas, and outbuildings. See website www.thetrustees.org for other dates and times. Recommended for children 8 years and older. Full (90-minute) and half (45- minute) tours.  Members of the Trustees: free, Non-Members $5.  For more information call 978-921-1944 x 4009, or email needucation@ttor.org.