Yes, the majority of hotel bookings are fully refundable if cancelled prior to the hotel's cancellation deadline, which is usually within 24-48 hours of your scheduled arrival. If you have a reservation that's non-refundable, it may still be possible to cancel it and get a refund within 24 hours of booking. Enter dates in and click on "Search", then you can filter by "fully refundable" to get the best options available near Nagasaki Prefectural Art Museum.