Yes, you'll find most hotel reservations are fully refundable provided that you cancel before the accommodation's cancellation deadline, which often is within 24-48 hours of the scheduled arrival. If you booked a non-refundable reservation, you might be able to cancel it and be given a refund within 24 hours of your booking. Add your dates and click on "Search", then you can filter by "fully refundable" to review the best deals near Piedras Negras.