Group 1 - The core viewpoint of the article highlights the contrasting themes of "cool" and "hot" in Hainan's summer tourism market, with Hainan ranking among the top ten domestic destinations for summer travel in China [2] - The popularity of Hainan as a summer destination is evidenced by the high demand for various travel packages, including group tours and "flight + hotel" packages, particularly in Sanya [2][3] - The increase in family and parent-child travel has significantly risen since July, indicating a shift in tourist demographics and preferences [3] Group 2 - Various tourism products and events are being launched across Hainan to enhance the summer tourism experience, such as the upcoming "Boao Night" fireworks festival and water sports events in Wanning [4] - The ongoing "Hainan International Tourism Island Carnival" scheduled from August 2 to 31 aims to maintain the vibrant atmosphere and offer diverse cultural and tourism experiences for visitors [4] - The combination of "cool" experiences and "hot" market activity reflects both the tourists' preference for summer cooling experiences and the effectiveness of upgraded tourism products and services in Hainan [4]