It is a marked walking trail around the edges of greater Brussels, taking advantage of the green patches, parks, canals and gardens. The rouse it approximately 60 km depending exact paths at a few places. It is a really great way to see so much of diverse Brussels. Very different neighborhoods, woods, parks and countryside as well. Note that there are some alternate routes possible in a few places - for purposes of the FKT take the quickest way while staying on the official path.
--submitted by Torben Østerlund