Yes, most room reservations are fully refundable if cancelled prior to the hotel's cancellation deadline, which often is within 24-48 hours of your check-in date. If you booked a non-refundable reservation, it might still be possible to cancel it and get a refund within 24 hours of your booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to get top deals close to Pointe de Dinan.