15 km detour, instead of possible 1 km trip in straight line, is the price, people, currently living in Zuikių street (Vilnius), have to pay in order to reach main part of the city. But people have discovered ways to significantly shorten the trip: cross the railway tracks, after climbing a steep hill or go through the sewer tunnel.
Popular choice is a passage through the sewer tunnel. Tunnel is narrow, so people have to bend to be able to succesfully cross it. Traveling this way requires a lot of endurance not only for the old, but for the young too. In spring or rainy fall, sewer is flooded so people have to wade.