Core Viewpoint - The development of marine industries, technological advancements in marine science, and innovations in marine tourism have enriched the coastal tourism experience in China, particularly in regions like the Changshan Islands, which are becoming popular summer destinations for tourists [1]. Group 1: Marine Tourism Development - China has a coastline of 32,000 kilometers, offering diverse coastal styles and tourism experiences [1]. - The Changshan Islands, located in the northern Yellow Sea, consist of 175 islands and are known for their unique marine tourism offerings, including water sports and ecological tours [6][30]. - The local government has been focusing on integrating marine and island tourism to create new consumption scenarios, enhancing the tourism landscape [4]. Group 2: Accessibility and Infrastructure - Ferries operate regularly from Dalian to the Changshan Islands, providing convenient access for tourists, with departures approximately every 20 minutes [8]. - The islands have a well-developed public transportation system, including shared electric vehicles, making travel easy for visitors [14]. - The road network on the islands connects various scenic spots, enhancing the overall tourist experience [14]. Group 3: Unique Experiences and Activities - Popular activities on the islands include paddleboarding, sailing, and ecological tours, with sea fishing being a major attraction [24][30]. - The region has been recognized for its rich marine biodiversity, with optimal conditions for fishing due to the convergence of warm and cold currents [26]. - A smart platform for sea fishing has been launched, allowing enthusiasts to book boats, plan trips, and access various services, marking a significant step in marine tourism innovation [29].