What are two Germans doing on a beach volleyball court? If you think of winning, you're spot on. Julius Brink and Jonas Reckermann are the current World Champions of Beach Volleyball – an almost exotic title for two Germans. To stay at the top, they (almost) go to hell. We accompany them on their way from sunny winter quarters in Tenerife to Germany's underworld: a hot and dusty training court 850 m (2,788 ft) below ground. The designated "hellish" court is better known as the Merkers Salt Mine in Thuringia, where the temperature is 30°C (86°F) and the air is humid. Each serve, each block against their challengers, are akin to torture. The players who can stand this will hear Mozart's "Eine Kleine Nachtmusik" when a thousand Brasilians whistle at the serve.