Please make sure those passports are renewed! For flights to and from international destinations, including Mexico, government regulations require the use of a passport for entry into, and exit from the United States for U.S. Citizens as well as foreign visitors. For more information on acquiring and renewing your passports: https://travel.state.gov/content/travel.html
When you Arrive in Mexico:
You will receive a tourist visa to enter Mexico. Your flight attendants will give you the forms to fill out on the plane, and you will receive a stamp on it after you go through customs. It's very important that you keep this little piece of paper for the duration of your stay - you will need it to get out of the country! Please don't let it stray far from your passport.
When you get off of the plane in PV, here is what to expect:
1. Pick up your luggage. (There is a place to exchange money here if you need.)
2. Go through security check point and customs. Mexico has a push-button system. If you get a green light, you proceed through. If the light is red, they will quickly search your bags.
3. After customs, you will go down a hallway full of people trying to sell you a timeshare, offer you tequila and offering you taxi rides. Feel free to accept a drink but don't book your taxi with them
4. Proceed to your planned transportation below!