4th March > 30th June: open everyday from 9 am to 5 pm
1st July > 9th August: open every day from 9 am to 7 pm
15th-16th July - 22nd-23rd July - 29th-30th July: open from 9 am to 12 pm
10th > 20th August: open every day from 9 am to 12 pm
21st August > 1st november: open every day from 9 am to 6 pm
From Monday to friday the entrance ticket is 2€ for adults, from Saturday to Sunday or bank holidays is 6€ and it includes two guided visits.
Children under 12 years enter ALWAYS free, as well as people with disabilities.
For excursions we recommend practical and comfortable clothing, sports shoes, and a long-sleeved t-shirt for the guided tour in the tunnels of dam.