Yes, you'll find most hotel bookings are fully refundable if cancelled prior to the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of your scheduled arrival. If your reservation is non-refundable, it might still be possible to cancel it and get a refund within 24 hours of booking. Add your dates and click on "Search", then you can use the "fully refundable" filter to view the best deals near Gemini South.