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If you like coding and are pretty good at it why don't you try your hand at freelancing, or some other mobile tech job. There are plenty available out there, and with a masters you should be able to charge pretty reasonable ($50/hour+) rates. That would allow you to travel, make cash, do what you love, as long as you have an internet connection. You could reasonably be working 3 hours/ day and still be making 45 grand a year. I don't know how that would fit into being on the ocean all of the time though.

If you have some money saved up you could buy a sail boat and just sail around the world if you wanted. You wouldn't live lavishly but you'd have almost unlimited freedom.