Yes, most hotel reservations are refundable provided that you cancel prior to the hotel's cancellation deadline, which is often 24 or 48 hours before your check-in date. If you booked a non-refundable reservation, you might still have the option to cancel and be given a refund within a 24-hour period of booking. Plug in your dates, click on "Search", then filter by "fully refundable" to view the best options available near Dak Mai Waterfall.