Passport: You can apply for your passport at most any post office. You should allow 4-6 weeks to get it after applying. It may take longer so, the sooner the better.
For requirements to apply for your passport, go to: https://travel.state.gov/content/travel/en/passports.html https://www.usps.com/international/passports.htm
Copy of passport: You need to make two copies of your passport: one to keep with you, in your suitcase or carry on, the other one to give to a trusted friend or family member who can be called to help if you loose your passport or it gets stolen while here.
Visa: When you arrive in Guatemala you will get your passport stamped with a visitors visa at customs in the airport. You will receive a form to fill out on the plane for your visa.
One of the questions will be, “Where will you be staying while visiting Guatemala?” You should write, “San Cristobal Verapaz, A.V.” Insurance: You need to have an insurance policy for your trip. It is inexpensive and usually your personal policy will not cover travel to other countries. You can go to many different web sites to find travel insurance…here is an example: www.shorttermteaminsurance.com