I was an exchange student. In 2014, I got the opportunity to study at Southern Institute of Ecology (SIE), Vietnam Acadamy of Science and Technology and International Center of Tropical Highland Ecosystem Research (ICTHER) for 1 month. I went to a field trip at Mekong Delta & mangrove and collected soil sample in mangrove forest to analyze the pollen in soil. The pollen will tell us about the past of this area. Moreover, I went to Bidoup Nui Ba Nation Park for survey biodiversity and practice using Increment Borer for analyze tree ring. This field trip taught me to have patience, open mind for learning new thing outside classroom and enjoyed for working.