Many of the Belgian (and also foreign) pro cyclocross riders usually have a mid-week (technical) training session (mostly on wednesdays) in the 'Zwarte Water' forrest situated in the Belgian 'Kempen' area.
The forrest has a dedicated cyclocross parcours and is, without a doubt, THE cyclocross training hotspot in the world.
European CX Champion Tom Pidcock (GBR) is here to further craft his skills