Yes, most hotel reservations are fully refundable if cancelled before the hotel's cancellation deadline, which often is within 24-48 hours of your scheduled arrival. If you have a non-refundable reservation, you might be able to still cancel and get a refund within 24 hours of booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to get the best options available near Ethnographic Museum.