A Cheongyang County notice dated 29 September 2026 states that the observatory expects to close for about one week sometime between 20 October and 30 November 2026. Exact closure dates remain undecided. During this period, reservations for the following Tuesday through Sunday open on the preceding Tuesday at 10:00 a.m. Check this temporary notice rather than relying on the general one-month-ahead booking information. Enquiries: 041-940-2790.