Due to the influence of the Swallow Grotto landslide-dammed lake and adverse weather in the high-mountain areas, the Taroko National Park Headquarters (hereinafter referred to as the Taroko N. P. HQ) announced a temporary park closure on the evening of October 17. After continuous assessment and response efforts by relevant government agencies over the past several days, there are currently no signs of expansion of the landslide-dammed lake. Considering both the weather conditions in the upper reaches of the Liwu River and the current situation of the lake, the Taroko N. P. HQ will reduce the closure area and reopen certain high-mountain areas starting from October 23, 2025.

The Taroko N. P. HQ stated that the dam body of the Swallow Grotto landslide-dammed lake is mainly composed of marble blocks, and seepage has been observed. The lake water continues to flow back into the Liwu River through the Jinheng Tunnel. The Forest and Nature Conservation Agency will continue the excavation and lowering operations. Based on the Central Weather Administration’s forecast and recent observations, rainfall in the Taroko mountain areas is expected to ease. Therefore, beginning October 23, 2025, the high-mountain areas will reopen, and park entry permits for ecological protection areas such as the Nanhu Peaks, Biyang Traverse, and Northern Section 2 will be accepted again.

However, the Qilai Main and North Peaks routes will be temporarily closed for helicopter transport operations and related construction at the Qilai Cabin. The Qilai East Ridge route will also remain closed, as its exit lies near the landslide-dammed lake safety alert zone east of Tianxiang. In addition, Mt. Hehuan, Chongde, Daqingshui, Taroko Terrace, Taroko Visitor Center, Dekalun Trail, and Dali–Datong Trail will all reopen simultaneously.

Although the landslide-dammed lake has not significantly expanded, the risk has not yet been fully eliminated. The public is urged not to approach the alert zone for their own safety.

The Taroko N. P. HQ emphasizes that after continued rainfall, the soil and rocks in the mountain areas remain saturated, and slope stability along roads and trails should be carefully monitored. As rainfall is still forecast for northeastern Taiwan and the Hualien mountain regions, visitors are reminded to prepare appropriate gear, maintain good physical condition, and stay informed of the latest weather forecasts. Practice responsible mountaineering and risk management—enjoy your trip and return home safely.