1) Is it permissible for one to go to a party with the intention of mu’tah if he is certain he will be safe from any immorality?

2) If one can hypothetically ensure that he will not look at women with lust is simply being in that environment a sin in and of itself?

1) If it entails forbidden looking at women, then it is not permissible, even if he is reassured that he will not fall into another forbidden thing.

2) If it is an immoral party in which forbidden things are committed, then it is not permissible to go to it