Official City tour on the Double Decker Hop on - Hop off Bus, Soweto and more. Hop onto our open top red bus and explore the City of Gold, as she is affectionately known. With over 16 stops, and taking you to over 20 of Johannesburg's top attractions, the bus allows you to hop-on and hop-off at your leisure. Safe, fun, educational and convenient. It could not be any easier to get to Johannesburg's top attractions.