A boat sails around the Blue Grotto in Qrendi, Malta, on June 14, 2024. The Blue Grotto, located in southern Malta, is one of Malta's most popular natural attractions. (Xinhua/Chen Wenxian)
People take a boat to the Blue Grotto in Qrendi, Malta, on June 14, 2024. The Blue Grotto, located in southern Malta, is one of Malta's most popular natural attractions. (Xinhua/Chen Wenxian)