Customers booking 10 or more tickets will be considered a group. The cancellation policy for groups is different. Groups of 10 or more will have a 50% non refundable deposit kept on any cancellations or changes regardless of how far out they are made. Customers are required to sign a contract and a copy of the signed contract is due within 7 days of booking to confirm the reservations, otherwise the order will be cancelled. A final guaranteed passenger count is due 72 hours prior to the tour. Decreases making total due less than the 50% deposit will not receive any refund of original deposit. Any decreases to passenger count within 72 hours will not be refunded. No shows will not be refunded. Additional tickets may be purchased on site based on availability however tickets will be reserved for the final guaranteed passenger count. If guests would prefer to book a group booking via phone please call 800-450-7139 and ask for the groups department.