The Pacific students are among 210 young people from 43 countries attending the summit along with over 200 Japanese youths.
Japan was hit with a deadly tsunami in March 2011 following a magnitude nine earthquake off the country's east coast.
At least 20,000 people died in the disaster.
Noriko Tanaka, from the Japanese Embassy in Wellington, said it was important for the youth to learn about tsunamis and share their knowledge with their communities when they return home.
