You can find the Venue on Google maps.
Rooms in the conference hotel (Hotel Van der Valk Nijmegen Lent) can be reserved via the INDICO registration for 107.50 EUR/night (single room) or 125.40 EUR/night (double room). Rates include breakfast. Deadline for the group reservation is 15 May 2022.
Other accommodation possibilities in Nijmegen are available via the standard hotel booking online services.