Meant to be somewhere in Croatia. Theres a thread about it on 4chan, the website who found out about that woman who put the cat in the bin.
4chan currently have a facebook accounts, probable brother's phone number, email addresses for various relatives, details of possible camera man, the location of the river in question and are getting croatian members in the area to do a little more digging.
The trouble is this time around it has been a couple of years since this vid was shot.