During a visit to The Netherlands you are welcome to have a look at the Defence Line. Walk or cycle along the Defence Line or visit one of the forts.
Several forts are open for a visit by individuals on a regular basis, often for a guided tour.
Fort along Pampus, the fort island in the Lake IJssel, is open to the public almost every day during the summer months.
Forts with information in the English language on their websites are:
Or visit the Netherlands Fortress Museum in the fortress Naarden.