It's the former "concert bowl". Back in the 70's it attracted large crowds and top acts... http://www.ukrockfestivals.com/Garden-party-71.html The horrible rusting steel eyesore (award winning!) replaced the original stage. Since then there have been a few events but AFAIR few have attended (the tickets were extortionate even for trribute bands). http://www.urban75.org/festivals/crystal-palace-bowl.html The banked area has been packed with sun-worshipers with the recent hot weather. A few weeks ago the stage was being jetwashed so perhaps something's planned.
