Core Insights - The transformation of a former calcium carbonate factory into a comprehensive diving sports base and hotel marks a significant development for the city of Jiande, aiming to establish itself as a "light extreme sports city" [1][3] - The "Water of Extreme" diving hotel features a 42-meter deep diving pool, the deepest in East China, catering to various levels of diving enthusiasts [3] Industry Development - The diving industry in China is experiencing rapid growth, with search volume for "diving" on social media platforms increasing by hundreds of times [3] - Jiande has developed over 40 sports and leisure projects suitable for young people, including aviation experiences, water sports, outdoor adventures, and mountain off-roading [3] - The local government plans to accelerate the construction of a light extreme sports industry cluster to attract more international events, positioning Jiande as a desirable destination for global light extreme sports enthusiasts [3]

Core Viewpoint - The article highlights the successful development of a unique sports event in Jiande, Hangzhou, leveraging local water resources to attract swimming enthusiasts and boost tourism [1][7]. Group 1: Event Overview - The "Winter Swimming Challenge" in Jiande has evolved from a local tradition to a significant sporting event, with over 2,800 participants from 120 teams across 16 provinces [1][3]. - The event features swimming in the New Anjiang River, where water temperatures range from 14 to 17 degrees Celsius, providing a unique experience for participants [2][3]. Group 2: Safety Measures - Safety protocols include pre-event trials for participants, 30 rescue boats on the river, and 16 lifeguards stationed every 100 meters, along with four medical points staffed by 20 medical personnel [5][6]. Group 3: Brand Development - The event has been rebranded from "Endurance Warrior Challenge" to "Winter Swimming Challenge" to enhance its appeal, with notable swimmers invited to participate, increasing its visibility [6]. - The event's online presence has surged, with over 120 million views of related content, attracting a younger demographic, with participants aged 20-40 increasing by 73.3% compared to the previous year [6]. Group 4: Economic Impact - The event has significantly boosted local tourism, with 213,300 visitors during the event, a 12.5% increase year-on-year, and tourism revenue reaching nearly 28 million yuan, up 16% [7]. - Jiande is also expanding its offerings in extreme sports, with plans for a new diving facility, further enhancing its appeal as a destination for adventure sports [7][8].

Group 1 - The event "Summer Winter Swimming Challenge" in JianDe attracted over 2,800 participants from 120 teams across 16 provinces, showcasing a spectacular scene of "thousands competing on the river" [3] - The competition featured traditional events such as the "Cold Resistance Warrior Crossing the Xin'an River" (900 meters) and "Cold Resistance Warrior Swimming in the Xin'an River" (1,700 meters), testing both teamwork and individual cold resistance limits [3] - The unique charm of the Xin'an River's summer winter swimming comes from the constant temperature water sourced from 70 meters deep at the Xin'an River Hydropower Station, with the event being held 24 times since its inception in 1988 [3] Group 2 - The newly added "Reverse Current Challenge" paddleboard competition became the highlight of the event, with 47 participants, the youngest being only 12 years old [4] - The event introduced the concept of "light extreme sports," promoting a diversification of traditional winter swimming, and JianDe is developing various light extreme sports such as triathlons, rock climbing, and diving, appealing to younger audiences [4] - JianDe aims to deepen the "sports + cultural tourism" model, integrating resources like constant temperature river water and scenic canyons to create a new trillion-level sports tourism industry [4]