 Hello, my name is William Arevalo. I come from Colombia and I did a master's in urban work and sanitation, specializing in sanitary engineering. To me, the best part of the study, I think, was to take courses with important lectures regarding the work sector, also to do the field work and the field trip, where we can see the real things, how they work, because you complement the theoretical part that you get during the class with the field trip, and for me, I think that this is the most important part. We were in Madrid, where we visited the utility water there. After that, we went to Cartagena, where we visited some irrigation fields and also some drinking water and wastewater treatment plants. That experience was really nice, since you can compare how is the Dutch style to develop the projects and also how in Spain they develop their projects. It could be a good option, since you can improve not only your professional skills, but also you increase your personality and you become like an independent person. You make some friends, international friends, that after the master's degree you are going to keep in touch with them.