On this week's Moscow Out, Martyn Andrews and his team look at the Russian Capital's various open air festivals. From an intriguing outdoor event on cardboard to a variety of rock concerts, such outings are enjoyed by thousands every weekend. We watch a Jazz festival at the beautiful Arkhangleskoe Park and Estate and see what other exciting outdoor events will be making their mark on the annual festival calendar. Bring your ear plugs - you may just need them!