Yes, you'll find most hotel bookings are fully refundable if cancelled prior to the hotel's cancellation deadline, which is often 24 or 48 hours before your check-in date. If you have a non-refundable reservation, you might still have the option to cancel and get a refund within 24 hours of your booking. Add your dates and click on "Search", then you can filter by "fully refundable" to get the best options available near Embankment Park.