In November we are staying in Johannesburg overnight before catching the train to Cape Town. We are wondering if it would be possible to use the Gautrain for the following route: We arrive at the airport at 5pm and need to transfer to our hotel in Sandton (Radisson Blu). The following afternoon we need to be at Johannesburg main station to board our sleeper train to Cape Town. Is it possible and safe to do these transfers using the Gautrain? Thank you for your help.