for athens, we were surprised to see him and his little boy ten hours after arriving on the island, they had ferry tickets ready to leave. you got registered? >> yeah. >> reporter: you got the ticket. their journey won't be easy. the route to germany keeps changing, as borders open and close along the way and greater controls are put in place. from greece, most travel through macedonia, slovenia to austria. we found hundreds sleeping in tents waiting to be allowed to cross. german authorities had just slowed down the entrance process, only a hand full at a time were being allowed in. not far away at the central train station, hundreds more waited in an under ground garage. >> the maximum capacity here in