In 's-Hertogenbosch, the Aa is a wide canal that runs straight to the city center. After reaching the city center, the Aa flows along the northern city walls to join the Dommel just west of the Citadel of 's-Hertogenbosch.
In 's-Hertogenbosch, the Aa is a broad canal that runs directly to the city center. After reaching the city center, the Aa flows along the northern city walls to merge with the Dommel just west of the Citadel of 's-Hertogenbosch.