Yes, you'll find most hotel bookings are fully refundable provided that you cancel prior to the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of the scheduled arrival. If your reservation is non-refundable, it may still be possible to cancel it and be given a refund within 24 hours of booking. Add your dates and click on "Search", then you can use the "fully refundable" filter to review the best options available near Grave of Boris Godunov.