I completed a business trip to UK, University of Hull from 15. 1. to 15. 3. 2020. The trip was a part of my Ph.D. internship. During the stay, I conducted a research experiment on ‘Effect of water acidification and pollutants on crayfish alarm response’. Moreover, I was also learnt English through communication with lab people and supervisor. I deliver a talk on my current research area there. Especially, I enjoy the culture, food, architecture, and people of Hull. Thanks to the Erasmus + program for funding the business trip.