I'm taking my Verizon iPhone 5 on a trip to Alaska starting Sunday and I'm not sure using my phone is going to work. We're taking a boat out of Whittier. So basically I'm asking if anyone knows what kind of coverage I'll get on land in Alaska and British Columbia (strength, roaming, etc.) and what kind of coverage I'll get on a cruiseship in the ocean. Any information would be greatly appreciated. Thanks.