Once the visa is issued and the itinerary is fixed, a trip to Bhutan becomes a series of very ordinary questions. How long is the drive? Is there a cash machine? Will my phone work? Can I drink the water?
The short version: you will be driven everywhere by a driver who knows the roads, the food is better than its reputation and hotter than you expect, cash still matters, and the altitude deserves more respect than the itinerary suggests. This section takes each of those properly.
The one to read first
Thimphu sits at 2,300 metres and most itineraries cross passes above 3,000. That is enough to leave some people short of breath on day one and sleeping badly on night one, so the health and safety page is worth reading before you arrive rather than after. Take the first day gently, drink more than you think you need, and tell your guide early rather than at the top of a pass.
Everything else here is practical and quickly answered — the pages below have the detail, and your guide will fill in whatever they miss.