Plenty of streams and hidden springs dot the small forested area behind one of the Vilnius better known manors. I highly recommend visiting the area, and taking the tiny, little paths that seem to go nowhere.

There's little risk to get lost - the city surrounds the place from all sides. This is why it's fine that the map is drawn from memory, and may lie occasionally. All in the spirit of a bigger adventure :)

Here are a few pics of the real location:

Real location on a true map: