Routes Via Baltica main road to the region, the fastest option On the Zambrów interchage exit the highway for DK63 in the direction of Łomża On the first roundabout in Łomża take the exit towards Piątnica on the roundabout before Kiesielnica take the second exit towards S61 Via Biebrzański this road takes you through the national park, picturesque and peaceful Exit the highway at Mężenin and turn right towards Goniądz Twierdza Osowiec – make a left towards Ełk or stop to discover the incredible story of the fortress