Christchurch, New Zeland.- Delaney Tarr says Valentine’s Day was supposed to be a time to celebrate beauty and love but instead turned into a day of fear when a gunman attacked her Florida school. But now she’s finding inspiration among others who overcame heartbreak half a world away.

The 18-year-old senior is one of 28 students from Marjory Stoneman Douglas High School in Parkland, Florida, who are visiting New Zealand this week.

The goal of the trip is for the students to learn how to keep a youth movement going long after a tragedy has faded from the headlines. The model is New Zealand’s Student Volunteer Army, which began helping citizens in Christchurch after earthquakes devastated the city, including a 2011 quake that killed 185 people. More than seven years later, the group is continuing its civicminded work.

As part of their visit, the Florida students planted 17 trees on Tuesday to commemorate each of the students and staff members who were killed at their school. They placed pictures and notes with the saplings, and recounted memories of their former classmates and mentors in a ceremony that brought many of them to tears. While the tragedies in Florida and Christchurch came from very different origins, both groups of students say they feel a common bond. Tarr said the students in both countries banded together and got something done. “We will never be able to really experience Valentine’s Day, to experience school, to experience life in the same way that we used to,” she said.

“And while that is heartbreaking, we’ve tried to make the most out of it. We’ve tried so hard to make some positive change out of something that never should have affected us, never should have affected anyone.

And ultimately, that’s why we are here now. Not as much to mourn the past but as to look forward to the future.”