Without getting specific, it’s nowhere near Tijuana or Cabo.
I wish them well. 20 years ago it was a great idea. My experiance has lead me to believe there is a spirit of lawlessness? there that continues to get worse. Most of the people there no longer like gringos.
But it is the same here in America. The devil is hard at work.
If your sister is saved then she may be where the Lord wants her to be.