Photo taken on Nov. 1, 2018 shows fish in shallow water in Niue. Niue, as referred to "the Rock", is one of the biggest coral islands on the planet with dramatic cliffs, interesting caves and chasms that are teeming with marine life. Visitors can enjoy snorkelling, diving, and whale watching trips. (Xinhua/Guo Lei)

Photo taken on Oct. 31, 2018 shows a man standing on the beach of Talava Arches in Niue. Niue, as referred to "the Rock", is one of the biggest coral islands on the planet with dramatic cliffs, interesting caves and chasms that are teeming with marine life. Visitors can enjoy snorkelling, diving, and whale watching trips. (Xinhua/Guo Lei)