Trousers are typical landscapes in Flanders and other lowlands. In the vicinity of Lummen, Halen and Diest you will find many rivers and streams. Here you will find the Demer, the Gete, the Velp; the Zwart Water, the Mangelbeek, the Voortbeek, the Laarbeek, the Steenlaak, the Zwarte Beek, the Hulpe, the Uilekoploop, the Leigracht,...

And along those rivers and streams a lot of wet spots like broken. Pants are a low-lying area that is permanently wet. This can be due to seepage (upwelling groundwater) or a river or stream that floods regularly and in some winters floods the land for a longer period of time.

The routes are therefore immersed in the toponyms that refer to wet soils: Muggenhoek, Rosse Beemden, Schulensbroek, Vennenhoek, Gorenbroek, Webbekoms Broek, Rotbroek, Dieters Broek, Molenstede Broek, Demerbroeken, Schansbeemden, Lange Beemden,...