Yes! The majority of hotel bookings are refundable provided that you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of your check-in date. If you booked a non-refundable reservation, you might be able to still cancel and be given a refund within a 24-hour period of your booking. Put your dates in and click on "Search", then you can filter by "fully refundable" to get the best options available near Niokolo-Koba National Park.