You can do the tour on your own with an audio-guide (iPod).
If a group cannot plan their time of arrival at the castle beforehand, this is a good alternative to the guided tour.
The audioguide is available in French, German, English, Spanish, Italian, Russian, Chinese and Japanese
Price : CHF 6.- (VAT 8% incl.) + entrance per person
Duration: the complete visit of the castle is one to two hours long. The audioguide rental closes 2 hours before the castle closes
Beside the museum tour, you can view eight 3-4 minutes films. Each sequence is dedicated to a particular theme:
its military function
its prison past
daily life at the castle
the Romantic facet of the castle
the lands of the House of Savoy around Lake Geneva
the life of Peter II of Savoy, major builder of Chillon Castle in the 13th century