If you choose to fly to space on the Russian Soyuz spacecraft, you have the opportunity to extend your stay on the ISS and conduct a spacewalk, accompanied by a professional cosmonaut. The training for this experience is conducted at the Yuri Gagarin Cosmonaut Training Center in Star City, Moscow – as the majority of your training for your spaceflight. The training involves familiarisation with the operation of the Orlan spacesuit and how the spacewalk is conducted. The best place to simulate the environment of open space is underwater, so a lot of your training will be completed in Star City’s neutral buoyancy facility, where a full-scale mock-up of the ISS modules is submerged, and you will learn every step of the process needed to successfully prepare for, exit and re-enter the space station in your Orlan space suit. Your stay in space will be extended by approximately six days to allow time for you and your crew mates to the prepare for and perform your spacewalk.