It's generally not very crowded, but can see more visitors on operational Saturdays.
The Royal Roermond Windmill is generally not a heavily crowded attraction compared to larger tourist sites. On most open days, especially non-operational days, visitor numbers are low. However, on Saturdays when the mill is actively grinding, it might attract more local visitors and enthusiasts, leading to a moderately busier atmosphere. Still, it rarely reaches levels of significant overcrowding, allowing for a comfortable visit.