The list of locations below is subject to change so make sure once onboard you double check to make sure you go to the correct muster station location. Your muster station onboard will be printed on your Sail & Sign Card, boarding pass, Carnival Hub App, and back of your stateroom door. Once you are onboard your Carnival Cruise ship you will need to complete the self-mustering process timely. To find your muster station pre-cruise all you need to do is look on your boarding pass (after online check-in is completed) to find the letter or letter & number combination that you are assigned for your muster station. Looking for where your muster station is located before getting on your Carnival Cruise ship? This post is a list of muster station locations compiled by ship & class based on postings Carnival's brand ambassador posted on Facebook.