My YL and I are going on a cruise and are planning on bringing our HTs with us to use for communication with one another while on the boat. (simplex) My issue is regarding international waters, and when the boat is in port. Obviously, when we are in Mexico, on Mexican soil, we will be subject to their laws. My questions are: 1. When we are traveling in International Waters down to Mexico from California are we able to use the radios without worry? 2. When the boat is in port and we are on the boat in port are we governed by Mexican law? I don't want to return from the cruise in hot water from using the HT to communicate while on the boat. I emailed the FCC and got an email back with an attachment explaining what FRS and GMRS is, when I specifically stated that we both had our Ham Radio Licenses and even provided our callsigns for them. Any information would be helpful. And yes, I checked Carnival's website as well as my traveling agreement and neither of them state anything about HAM/Amateur radio.