A huge 500ft long inflatable obstacle course is coming to Liverpool next week as this summer’s Indoor Funfair focuses on family fun. Huge 500ft inflatable obstacle course coming to Liverpool Indoor Funfair | Indoor Funfair Indoor Funfair takes place from August 14-24 and on Saturday August 15 at 10am, there’ll be a quieter session for those with sensory needs where music will be lowered.