That is to the semester at sea run near me. THere are several world wide, in Europe Les Glenans might be a good contact. Basically, it these are fully accredited college curriculums conducted underway on sailing vessels. The are usually science focused, but not overly so. You spend the semester sailing, learning seamanship, and local ecology etc. I have never heard a bad thing about one of these programs (that's why I am trying to start a junior one here)