Yes, most hotel room reservations are fully refundable provided that you cancel before the accommodation's cancellation deadline, which is often 24 or 48 hours before the scheduled arrival. If your reservation is non-refundable, it may still be possible to cancel it and be given a refund within 24 hours of booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to get the best deals available near Voronezh Oceanarium.