explore the scenic boardwalk trails of paanajarvi national park in karelia during the serene autumn season

paanajarvi national park karelia autumn boardwalk russia trails nature forest hiking outdoor activity scenery wildlife trees serene landscape adventure travel exploration path relaxation flora sustainable tourism tranquility wilderness scenic route recreational area trail panoramic views natural beauty terrain environmental conservation biodiversity peaceful unspoiled untouched journey sightseeing picturesque habitat walking fresh air explore season wooden winds lush greenery inviting visitors enjoy