One of the greatest memories in my life was being a volunteer on Lyson island, Vietnam. Together with my team, we opened free summer classes for high school students there. We had 13 talented volunteers from all over the country gather and create an unforgettable summer on this beautiful island. We had classes every day, except Sunday, from morning to evening. On Sunday, our students became our tour guides. They took us to every corner of the island and told us about its history. After the trip, I have learned a lot about lives near the sea coast. Lyson was a meaningful experience that I could never forget.