Yup... That's Easter in the Eastern Europe.
Guys whip and splash single girls with cold water and whip called Korbac. No mercy! After that, girls thankfully give them some Easter Eggs, ribbon for their korbac and something to eat and drink! When your cousins are extra nice, they just toss you in the local river :D Damn, I love our traditions :D
Some footage :D
And Youtube:
https://www.youtube.com/watch?v=nXlPVlsFS7o
Enjoy! LOL :D