Yes, the majority of hotel bookings are fully refundable provided that you cancel prior to the accommodation's cancellation deadline, which often is within 24-48 hours of check in. If your reservation is non-refundable, it may still be possible to cancel it and be given a refund within 24 hours of your booking. Enter dates in and click on "Search", then you can use the "fully refundable" filter to review the best options available near Llyn Corn-ystwc.