Day 4 Bye bye Oivanki! On the way, the group visit Oulanka, a Finnish National Park bordering with Russia. They could walk thoughout the Park over 2 hours, having a break to have the packed meal, including some sausages to grill beside a river. During the hike, students and teachers could breath clean air, hear the sound of the rapids and see a waterfall. It was a tired but exciting activity.