The grid shows a section of the beach in Coast City where each square has sides that are 100 yards long. On a coordinate plane, the beach front is about 800 yards long. From the south pier to the north pier along harbor drive and park street, the distance is 1200 yards long.

Lisa walked from the South Pier to the North Pier along the beachfront. Deanna walked from the South Pier to the North Pier along Harbor Drive and Park Street. Which statement best describes the distances the two women walked?
Lisa walked about 400 yards farther than Deanna.
Lisa walked the same distance as Deanna.
Lisa walked about 400 yards less than Deanna.
Lisa walked about 400 yards.