Cancellation and Refunds Your purchase is 100% refundable provided you cancel your reservation at least 24 hours (for group charters) or 72 hours (for private charters) prior to its check-in time. Company reserves the right to cancel or reschedule tours at any time due to weather or capacity. Tours not suitable for pregnant women, infants under 3 for whale watching or 4 for snorkeling, or persons with back or neck injury(s).