For groups of fewer than 10 guests: Cancellations made more than 72 hours prior to the departure of the trip will receive a full refund. Any requested changes to a trip departure time, date, or river section made more than 72 hours prior to the originally scheduled departure will not result in any additional charges, but will be subject to availability. Once you are within 72 hours of the scheduled trip departure, no changes may be made to trip departure time, date, or river section, and if you or anyone in your party needs to cancel for any reason, you will receive no refund. For groups of 10 or more guests: Cancellations made more than 1 week prior to the departure of the trip will receive a full refund. Any requested changes to a trip departure time, date, or river section made more than 1 week prior to the originally scheduled departure will not result in any additional charges, but will be subject to availability. Once you are within 1 week of the scheduled trip departure, no changes may be made to trip departure time, date, or river section, and if you or anyone in your party needs to cancel for any reason, you will receive no refund. It is your responsibility to be at your trip’s designated office at the scheduled check-in time. There are no exceptions to this policy so please remember to account for weather conditions, traffic, construction, etc. We reserve the right to alter your scheduled trip without notice or allowance for refund. Please note that no refunds or credits will be given if your trip is altered in any way due to water levels.