How many of us have attended a survival school or class of some sort?
In the UK there are some organised retro camping i.e. Bushcraft courses, Hill Walking, orienteering courses,
messing about on scaffolding etc but I wouldn't pay to attend any of them.
I believe that there are some
courses in the US where folks get paid to attend some PT classes, Sunbathing on the beach, SCUBA, Swimming, Snorkeling and some messing about in boats and in the surf etc. You would have to pay quite an amount for the same out of bounds activities if vacationing in Cancun.
The US courses do seem to be a lot more glamorous but the instructors seem to be a lot more shouty!