People celebrate birthday along the Caspian Sea in Aktau, Kazakhstan, on Aug. 5, 2025. (Xinhua/Li Renzi)

People enjoy themselves by the Caspian Sea in Aktau, Kazakhstan, on Aug. 6, 2025 (Xinhua/Li Renzi)

An aerial drone photo taken on Aug. 5, 2025 shows the Caspian Sea coast scenery in Aktau, Kazakhstan. (Xinhua/Li Renzi)

An aerial drone photo taken on Aug. 5, 2025 shows the Caspian Sea coast scenery in Aktau, Kazakhstan. (Xinhua/Li Renzi)

An aerial drone photo taken on Aug. 5, 2025 shows the Caspian Sea coast scenery in Aktau, Kazakhstan. (Xinhua/Li Renzi)

An aerial drone photo shows people enjoying themselves in the early morning hours on the beach in Aktau, Kazakhstan, on Aug. 5, 2025. (Xinhua/Li Renzi)

People enjoy themselves on the beach in Aktau, Kazakhstan, on Aug. 5, 2025. (Xinhua/Li Renzi)