Silmi Beach, also known as Keunmuri Beach, is located on Muuido Island. The clean, sandy beach stretches out beautifully against the backdrop of a lush pine tree forest so dense that it does not let daylight in, even at midday. Facing the beach is Silmido Island, the location for the filming of "Silmido (2003)", a Korean movie based on the tragic story of Korean Special Ops Unit 684. The film set, however, was demolished after the shooting. The pathway to the island, which has no residents, can be shown during low tide. Therefore, visitors should be aware of the tidal times to know when they can cross back to the mainland.