It's nice place to rest with familiy and friends. There is a lot of nature. You can breath clear air. I've been 2 times there and i can only say that is grate place. There is Hotel "Termal" near center of Vrdnik. But you can rent houses if you don't want to pay for Hotel. But there is pool inside and outside. You dont have to be in Hotel to go in. You can pay for pool. Water in pool, they called medicinal water. There is many of old people that came there, beacuse they like healing in that water.
So, Vrdnik is nice place to rest and relax in pure nature and clear air. Enjoy :)