Cheng Yu Tung College (CYTC) went to Macao Customs Service to pay a visit on December 6th, 2020. This event had 21 members of CYTC with 2 hour duration and led by the officers. The participants had a better understanding of how the Macao Customs Service operate, including how they carry on the sea patrol and the equipment of the diving team. At the same time, members also learned the responsibility of Macao Customs Service during the pandemic. They need to strictly control and supervise the man flow and do all the epidemic prevention measures; supervision on the quarantine is also one of their duties. Besides, the participants experienced the sea patrol simulation with the lead of customs officers. This activity was a whole new experience to the members and they recognized the hard work of the customs officers as well. All the participants were impressed by the learning trip and had more connection with Macao culture and the government work.