Taking my SIM card out of my iPhone 4S?

Right so I have the iPhone 4S and I was just wondering that if I take the SIM card card out will it still work and if so what will I be able to do on it? As I'm going abroad to cyprus next week and I don't want to risk it charging me for going on the Internet or something. Also if I have twitter/ Facebook on my phone (with the SIM card taken out) would i be able to go on them if my hotel has Wi-Fi? And also would I be able to download music on it and take photos?

Yeah, you can use your iPhone without the sim card and just use Wi-Fi. If you put your sim card in, you'll probably be charged a lot of money for roaming, so I suggest you don't. One thing you can do is buy a prepaid sim card in Cyprus, and then just purchase a small data allowance so if you really want to use twitter or facebook, you could; but I don't know much about Cyprus and their prepaid sim cards though.