In the warm spring, the flowering crabapple trees are in full bloom, exuding vitality. On April 5, 2025, faculty and students of Tianjin University, along with visitors from all directions, gathered at Peiyang Campus, Tianjin University to enjoy the beautiful crabapple blossoms.

The School of Marine Science and Technology organized a series of exciting interactive activities, helping the visiting public recognize, understand, and care for the ocean through participation in new engineering project-based teaching exhibitions, drone and unmanned boat science demonstrations, and marine knowledge quizzes.

Dr. Gao Miao’s team from the School of Marine Science and Technology conducted a teaching science demonstration of intelligent unmanned boats at Peiyang Square. These unmanned boats can perform various functions such as surveying, water quality sampling, rescue missions, and oil spill detection, featuring high levels of autonomous navigation, multifunctionality, and ease of deployment. The team enthusiastically introduced the principles and applicable scenarios of intelligent unmanned boats to visitors and engaged them in interactive interaction, enhancing their understanding of marine technology in a relaxed and enjoyable atmosphere. Ultimately, the unmanned boat safety assurance platformwon first prize at the new engineering project-based teaching exhibition.

On the eastern shore of Jingye Lake, the demonstrated UAV, KEEL Pro, with an advantages such as long-range, extended flight times, and high payload capacity, with a maximum load of 70 kg, made it capable of easily carrying multispectral sensors, visible light cameras, and heavy supplies. ZHT Innovation Company has established a close industry-university-research collaboration with the School of Marine Science and Technology, jointly conducting the "Air-Sea Collaborative Intelligent Monitoring Project," which utilizes the coordinated technologies of drones and unmanned boats to collect and analyze water quality and ecological data from rivers and lakes, providing efficient technical support for water management.

Against the backdrop of the spring lake scenery, the drones soared elegantly while the unmanned boats navigated through the waves, captivating the onlookers and inviting them to pause and appreciate the fascinating charm of marine science and technology.

Also on the eastern shore of Jingye Lake, the School of Marine Science and Technology collaborated with Tianjin Polar Ocean Park to conduct a joint science outreach activity. Marine Park experts were present to provide explanations and answer questions. Visitors could observe live jellyfish, touch polar biological specimens and animal fur, while immersing themselves in the vibrant and romantic atmosphere of spring at the ocean park through themed photo spots.

At the same time, in front of the eighth teaching building, members of the graduate student association and student council from the School of Marine Science and Technology hosted a marine knowledge quiz for the public. The engaging quiz questions attracted many visitors, including children, effectively enhancing their understanding of marine knowledge and deepening their enthusiasm for exploring the ocean.

The series of open day events for the Haitang Festival at the School of Marine Science and Technology of Tianjin University successfully attracted a large number of visitors and significantly increased their enthusiasm for recognizing, understanding, and caring for the ocean. Many visitors expressed that the showcased drones and unmanned boats allowed them to see the potential of marine technology and experience its allure. The 2025 Haitang Festival has come to a successful conclusion, and we look forward to a future spring filled with blossoms and vibrant crabapples. Let us care for the ocean and protect it as we sail forward with the winds and ride the waves.