premise: Although there's enough to see inside Fontainebleau to keep you busy for a day or two, many visitors prefer to spend the bulk of their time exploring the beautiful grounds and the spectacular Forest of Fontainebleau ' 25,000 hectares (over 60,000 acres) of oak, beech, silver birch, pine, chestnut, and hornbeam.
hypothesis: The forest is only 4 acres. 