Bassie & Adriaan have driven into a dead end street with the go-karts and Bassie asks Adriaan how they should proceed, then Adriaan decides to enter the building.
The building and door they run into in this shot is in Dordrecht.
Only the shot with the go-karts in the alley is in Valkenburg.
The recording took place at Molenstraat 9 in Valkenburg.