Using Iphone 5 abroad/ while travelling without roaming?

I'm travelling to the US to go on a cruise very soon and i don't want to pay roaming charges, can i just remove the sim card and use it just for the camera? I don't need to call or text (but would i be able to text if there was Wi-Fi?) all info is helpful thanks.

Added (1). i just want to use the phone for the camera. I don't want to call or text.

Added (2). should i just take out the sim card?

1. Click on Settings
2. Click on Cellular
3. Turn Cellular Data off

Now, the only time you can send a text is when you are connected to Wi-Fi. Every other function works the same, but restricts all cell data (texts, internet, etc.) to Wi-Fi.

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