Group 1 - The core idea of the article is the launch of the "2025 Summer Carnival" by Happy Valley Group across 25 cultural tourism projects in 13 cities, aiming to meet diverse entertainment needs for all age groups during the summer season [1][2] - The parks are innovating music scenes to attract visitors, with Shanghai Happy Valley featuring a "Summer Music Stage" and Beijing Happy Valley implementing a "Day Water Night Music" dual venue model [1][2] - Water entertainment is highlighted as a key component of summer tourism, with various water parks offering unique experiences that cater to young visitors' preferences for exotic cultures and social interactions [1][2] Group 2 - The "2025 Summer Carnival" includes the introduction of leisure game IPs and themed water play areas to attract family visitors [2] - Technological advancements are enhancing night tourism experiences, with drone performances becoming a regular feature in several cities, showcasing traditional culture through modern light and shadow techniques [2] - The event reflects a shift in the tourism industry from simple sightseeing to experience-based consumption, emphasizing the need for innovative business models to activate existing spaces and transform attractions into lifestyle platforms [2]