It is generally safe to pitch a tent in the bush, though you should always seek the permission of the headman of the local community first. These are open 7 days a week, throughout the year. The Royal Swazi Express operates a four-day rail tour from Johannesburg five times a year. Bookings should be made well in advance. There are good bus services including express coaches that connect the major towns, though these are infrequent.
Minibuses operate more often, and generally cover shorter distances.
There are a total of 18 runways in Swaziland, but only the international airport has a paved runway. There are 3,810 km of highways in Swaziland. The main roads are all tarred, and all other major roads are well-maintained gravel roads. Vehicles drive on the left. Car hire is available.