Restricting data usage in iPhone?

Tomorrow I leave for cancun but I want to bring my phone to listen to music and take pictures. Since it is out of the country I can't use any data at all or it'll charge a lot. I have my cellular data and data roaming turned off. If I also turn on airplane mode will that restrict All the data so I don't get charged?

Go to:
iPhone Settings>General>Cellular>Cellular Data. *You should be able to turn it off from there.

You can also just turn it on Airplane mode. When you do that, the carrier signal at the top should disappear.

You can turn it to airplane made but that turns off all of the phones antennas. Basically it won't receive any outside signal. This is good for a number of things, improved battery life and no usage of data or minutes are the most important. The downside to this is that nobody will be able to contact you in an emergency.

Phones antennas

Airplane

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