The advisory was issued on March 12, 2026, and the State Department's page was last updated on June 11, 2026; it was read for this answer on October 10, 2026. Its reasons are plain: some areas have higher levels of gang-related violence, tourists can fall victim to opportunistic crimes such as scams and extortion, and local law enforcement often struggles to respond to serious crime. It lists Tikal, Antigua, Lake Atitlán and the Pacific coast as popular destinations that U.S. government employees may visit, and says Guatemala's tourist assistance service, reached by dialing 1500 from a Guatemalan phone at any hour, works with tourist police in those areas. Government employees are not allowed to travel outside the capital at night.
The practical advice follows from that. Travel between towns in daylight. Use vetted taxis or ride services and avoid public buses, including the repainted school buses known as chicken buses. Do not hike trails or volcanoes without a qualified local guide, and be aware that some tours go to active volcanoes the government has placed off limits. Avoid public ATMs and keep phones and valuables out of sight. Enroll in the State Department's Smart Traveler Enrollment Program, and buy travel insurance that covers medical care and evacuation.
Good to know before you go: an advisory describes a whole country, and the picture differs sharply between the named no-go areas and the tourist centers. It can also change without notice. Read the current text yourself shortly before you commit and again before you fly, and ask whoever organizes your pilgrimage exactly how the group moves between Guatemala City, Antigua and the lake.