What the BevHELLe?

[f f freak]

they were most likely thrown into Via Purifico , and as Kinoc says, No one has survived Via Purifico, or something like that

Which is strange considering that it is a straight line from where they throw you in to how you get out.

[Psydekick]

Very good point, And remember they probably went in a different way.

Remember that all summoners arent from besaid

[Ozmoid]

I seem to remeber something about everyone knowing about the warrior monks' machina. But the machina in the traials seem like the kind of thing Sin was made to stop: transportation machina.