Winter time (From September to March) : 9.00am Summer time (From April to August) : 10.00am  We can adapt our timetable to your needs. So depending guides availabilities and other reservations we can start tours at different times.  If your itinerary constrains you to start the tour at another time than the morning, please let us know about it in your reservation. We would do our best to arrange this with you. For example, if you prefer to arrive for the overnight first, plan to be here between 4.00-5.00pm in winter or 5.00-6.00pm in summer, and then you can have your tour the next day.