A border that you should pass through from South Afric to Botswana if you come from Johannesburg or Pretoria, and are heading to Gaborone or Maun crossing the Kalahari. You arrive to the part of South Africa and they make you park your car, then you head towards to a one-story building about 50 meters away. They then need to stamp the exit but they will make you return from Botswana. There are no leaving taxes to pay. Take the car again and head back to Botswana 300m away. There it's a 4 euro entry tax and you will get a stamp. Avery rural border.