I think you could expand this concept by promoting theme-based sailing trips such as an exciting “Pirate Cruise” with your choice of either the Bight of Guinea or the Horn of Africa. Either way, the excitement of being taken captive, held hostage and potentially tortured while waiting for the ransom to be paid beckons. You could promote this as a weight-loss tour if you are captive long enough for the food to run out. Watch those pounds melt away.
How about a “Beat the Reaper” cruise of the Indian sub-continent, where there is always the possiblity of catching a disease they don’t have a name for and they will name it after you. Talk about something that will impress the folks at home, if you survive. Even if you don’t catch something that will rot away body parts or leave you permanently scarred, you will get to to meet plenty of locals who have already done so. Be sure to get a selfie with your new friends.
And for the would be Rambos, there is always a trip to a war zone. You never know what might happen next. Civil wars and coup d’etats offer plenty of thrills.
As you can see I am an idea man so feel free to contact me for more ideas for the sailing trip of a lifetime.