Amsterdame Bos is a large and lovely park southwest of the city and near the airport. There’s a large number of nature paths. It’s about 9 miles around the perimeter. Highlights include the 2.3 bucolic paths around De Poel lake, and 3.1 miles around the Bosbaan rowing lake. There’s a spa sport hotel in the area, and after your run, enjoy pancakes at Meerzicht Farm. This is a great running option right near the airport. Can be combined with Kalfjeslaan/Buitenveldert, below. Also, a good starting point or side trip is the 1928 Olympic Stadium.