Yes, most hotel reservations are fully refundable provided that you cancel before the accommodation's cancellation deadline, which often is within 24-48 hours of your arrival date. If you booked a non-refundable reservation, you might be able to still cancel and be given a refund within 24 hours of your booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to view the best options available near Plage de Pindai.