Support the Gateway Arch Park Foundation and enjoy an evening in the park with live music at Kiener Cocktails. The new Kiener Plaza is yours to explore in the heart of downtown St. Louis. The open bar is stocked with specialty cocktails selected by Major Brands. You can meet your friends, coworkers, and Gateway Arch Park Foundation staff for this fun, monthly happy hour. Gateway Arch Park Friend Supporter level members enjoy free admission and drinks. RSVP required. Must be 21+ to attend.