And your teens will probably prefer the dj scene at that age.

Jungle- they will be fine. No different to a club in the states or uk. Sensible drinking advice and advice on not to leave with anyone should suffice. Also to be careful of the hooker girls in there, just say no....

Check out the chalk boards in town for local parties, always tourists at these, but due to their age I would recommend you to go as well. Maybe stand away from them but in sight. They will be okay and at their age this is probably the scene they are looking for.