Once the boats leave the port, they turn onto the Netta River. In 1912, Napoleon’s Army chose the river banks for their overnight stay and rest during their Moscow offensive. One of the soldiers taking part in the offensive was Ignacy Prądzyński, the future designer and builder of the Augustów Canal. After the boats cruise past the beautiful walking trails on both banks of the Netta, they enter Lake Necko. They then head in the direction of Lake Rospuda, located within a virgin, wild nature area. The uniqueness of the Rospuda Valley, whose landscape is protected due to the rare species of plants and animals, became the reason for ceasing the construction of the Augustów bypass in this area.