Ełk is the largest town in Masuria and the seat of Ełk County and the Diocese of Ełk. The second town covered is Birštonas in Lithuania – a spa resort on the River Neman south of Kaunas, known for its mineral waters, pine forests and picturesque river meanders. We created a mobile app for cycling enthusiasts – a guide to the attractions and trails of Ełk and Birštonas. The recordings let you explore both towns and their surroundings at your own pace. The app is available in Polish, English, Lithuanian and German.