Yes, you'll find most hotel room reservations are fully refundable as long as you cancel prior to the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of your scheduled arrival. If you booked a non-refundable reservation, it might still be possible to cancel it and get a refund within a 24-hour period of your booking. Add your dates and click on "Search", then use the filter option "fully refundable" to get the best options available near Coronados Islands.