Review for Hard Rock Hotel and Casino Sioux City Review For Hard Rock Hotel and Casino Sioux City Google User Jul 24 '17 at 11:35 This is the second time I've attended a concert outside at Battery Park and it was, again, enjoyable. The venue has plenty of outdoor restrooms, room for bring your own seating, multiple drink vendors, etc. The stage is also well placed with a set of projection TV's on either side to get a better view of the current act. Would definitely go to another show at Battery Park. View full site to comment or like