View of frozen tidal creeks in wetland of Liaohe River estuary in NE China

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Feb. 1, 2023 shows a view of frozen tidal creeks in the wetland of Liaohe River estuary in Panjin, northeast China's Liaoning Province. (Xinhua/Yang Qing)