I'm leaving Sunday On a Royal Carribean cruise they do charge I read somewhere it works out to about a dollar a minute or for a 100$ they can activate wi fi in your room for the length of your trip I'll paste theit Q and A below.
Onboard Extras
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Q: Can I contact people back home from the ship?
A: Your friends and family can contact the ship by calling (888) 724-SHIP. Or from outside the U.S. they can call (732) 335-3285. The cost is $7.95 USD a minute and can be charged to their American Express®, MasterCard®, Visa®, Discover® or Diners Club®. From outside the U.S. additional long distance charges will also apply.
You can make ship-to-shore calls from your stateroom, 24 hours a day. The cost is $7.95 USD per minute and will be automatically charged to your SeaPassSM account.
You can also use our onboard Internet Cafés, stateroom Internet connection, or Hot Spots to send an e-mail to your friends or family for a minimal fee.