What this section covers. Services sold alongside or instead of tours — transfers, guides, interpreters, event organisation and the practical support a visit sometimes needs.
Certified guides. Mexico's tourism ministry accredits guides, and for archaeology, muralism and the historic centre the difference between an accredited specialist and a general guide is substantial. Ask for the accreditation rather than assuming it; it is a reasonable question and nobody takes offence.
Languages. Guided commentary in Mexico City is normally in Spanish; English is widely available; French, German, Italian, Portuguese and Russian exist with notice and usually at a supplement. Confirm this when booking, not on the day.
Accessibility. Worth asking about explicitly. The Metro has lifts at some but not all stations, the historic centre has narrow and uneven pavements, and Chapultepec and the archaeological sites involve long distances and steps. Operators can usually adapt an itinerary if told in advance.
What to confirm before paying. Exactly what is included, the cancellation terms, whether insurance is covered, and who to contact on the day if something goes wrong.
Practical notes. Prices and validity dates change — confirm directly with the provider.