Group 1 - The core theme of the articles revolves around the promotion of Hainan as a diverse marine tourism destination, particularly with the launch of the 2026 Hainan Marine Tourism Year [1][3] - Hainan boasts over 1,900 kilometers of coastline and 68 scenic bays, offering various activities for tourists, including cycling, driving along the coastal roads, and water sports like wake surfing [1] - The "water village" concept in Lingshui, Hainan, provides tourists with an immersive experience of local fishing culture, allowing them to engage in activities such as fishing, beachcombing, and enjoying unobstructed views of sunrises and sunsets [3]