Longest 1885 km Cycling Trail in Poland (Green Velo)Recommendations / February 10, 2020 January 31, 2023 / infographics, Poland, routes Longest 1885 km Cycling Trail in Poland. Official Green Velo website Related posts: Cycling in Poland. Getting Across Europe By Bicycle Hiking in Latvia: Exciting Pēterezers Nature Trail Cycling in Bulgaria: 3 hot days in the country Cycling in Romania. Getting Across Europe By Bicycle