How to turn off roaming on my iPhone 4s with iOS 6?

I want to turn off roaming so when i go to europe, i'm not hit with a huge bill. I went to settings>general and there was no "network" option. Does anyone know how to get there. Remember i have ios 6 which has different layout than the ios5 in settings mode.

I'm not exactly sure which "roaming" you are talking about, but this is the general instructions to turn off Data Roaming on iOS 6:

Go to Settings > General > Cellular > Data Roaming > OFF
(You can also turn off the Cellular Data to restrict all data to Wi-Fi and Enable 3G in Cellular)

Hope this helps, and have a great trip to Europe!