A few years ago, the trip from Windhoek to South Africa across Botswana still was an adventure. Nowadays, though, the approx. 1400 kilometre trip on the tarred Trans-Kgalagadi Highway can be done within two to three days. Service and accommodation facilities in Botswana are very limited. But petrol is usually available.
The stretch to Maun via Ghanzi is untarred, the road quite bumpy in parts. It is more comfortable to travel on the A1 to Francistown and further to Nata.
The road from Maun to the southern entrance to the Chobe National Park is tarred only in parts and - especially in the Savuti area - quite sandy. A 4x4 is recommended for this trip. This also applies to a visit to the Moremi Wildlife Reserve.