missing lithuanian song!?!

i was a t a camp in lithuania last week and i have one song ringing in my head from there but i can't remeber what it was called. i've searched everywhere.

i think someone said the song's chorus went "down by the river" and the melody is the same as in the finnish song "varrella virran" http://www.youtube.com/watch?v=URzTW2iNcWM

if anyone has any idea, i'd love to hear it!

zemyn upe