Yes, most hotel reservations are fully refundable if you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of your scheduled arrival. If your reservation is non-refundable, it may still be possible to cancel it and receive 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 deals available near Roter Kamm Crater.