- Cancellations of reservations requested to Samara Adventures must be made 48 hours in advance of the requested service to obtain a full refund of the total amount paid. Cancellations of reservations requested to Samara Adventures 24 hours before the service have a 50% refund of the total amount paid. Cancellations of reservations requested to Samara Adventures less than 24 hours in advance or the same day of the requested service will not obtain a refund, no refund for no-shows.