Cooperation in transboundary National Parks (NPs) Oulanka in Finland and Paanajärvi in Russia was strengthened through implementation of a joint cross-border project that enabled the personnel of the NPs to work closely together in hands-on activities. The activities made the common history come to life, which helped in leaving behind past grievances through achievement of common goals and enhancing sustainable tourism within the Oulanka-Paanajärvi twin park.