May-June: from 11 a.m. to 6 p.m., everydays except on Sundays; from 14 p.m. to 6 p.m. on bank holidays.
July-August: from 11 a.m. to 6 p.m.; from 14 p.m. to 6 p.m. on Sundays and bank holidays.
September 2016-April 2017: closed (restauration work).
Admission: 2 € for adults; discounts for groups and children.
Group visits are possible out of season upon request.
Group visits by night are possible upon request.