Need info on developing reconstructable structures

[Thierry Van Roy]

So this is a very, err, exotic question, but what I'm looking for is this:

Reconstructable structures for a beach club.

The thing is France has had some legislation passed which abolishes beach clubs (think Saint Tropez) that are kept all year round in "environmentally sensitive zones" (i.e. everywhere).

They still allow licenses on leased beach land during the season (april-october) but outside of that, they need to magically disappear.

Save from having a 400.000 EUR write-off every year, I believe there has to be another way. Is there anyone here who knows of some sort of development tech or whatever which would make this possible?

So what I'm basically asking for are overgrown tents, but the Bedouin in North Africa weren't able to help me (save for lots of dates, which were delicious).