To guarantee any registration and/or accommodation the payment of full fee/stay is required. To guarantee any social program the payment of the fee is required. In case of any cancellation up to August 6, 2015, the costs will be refunded less 50 EUR for administration costs. After this date no any payment (registration, hotel accommodation and social program fee) can be refunded under any circumstances. Minimum number of guests for organizing any social program is 20 for each tour.