How to Plan and Execute a Successful Backpacking Trip in Developing Nations

One additional thought is to check local holidays as you plan your trip.  It can be very frustrating to arrive at a location hoping to get a permit or other service and all governmental offices/businesses are closed for several days.  Do not expect officials to be available early in the morning, late in the afternoon or on a Friday afternoon.  Credit cards may or may not be accepted.  Have fun!