My first time in an Onsen

I don't know how i survived so long without trying an onsen. It is one of the things that is recommended to most tourists. Probably it has something to do that i don't like to be naked in public so much. But finally i did it. We were in an onsen which was combined with a pool. So there where three main areas. One for men, one for women and the pool area which was mixed and where you had to wear swimming clothes. But lets start from the beginning. Before reaching the cashier we already had to put off our shoes and put them in an locker. At the counter we got informed about the rules, like no tattoos are allowed at that place. We got two towels (one big, one small) and a simple yukata. Then we separated. My wife to the woman area and i to the mens for changing. First i had trouble to find my locker. I got a wrist band with a number and the locker with that number i could open then. I was surprised that there were only a public change room. But apparently it seems to be no...