The event is going to be held in forests near Tis u Blatna, in the same area where the Czech Relay and Clubs Champs were held in 2019. There will also be a newly mapped area for stage 1. You can expect a moderately hilly mixed forest with many details (stones, cliffs, vegetation details) and good runnability. You can view some photos from the terrain here:
Map from the Czech Champs 2019:
You can also check out ourphotos from the terrain.