Once being small many centuries ago, the village has since expanded and gave birth to many strong shinobi, it's still behind a Waterfall - hence 'The Hidden Waterfall Village'. Only its inhabitants know the village's entrance. The Hidden Waterfall Village has no Kage, but they have something called the Hero Water to help them protect their village. It's some sort of holy water which is extracted from the great tree (located in the Hidden Waterfall Village) every one hundred years. It is suposed to tenfold the user's chakra, and aid the 'heroes' in protecting their village in times of battle.