Purchase Wednesday Waterfest Finale tickets for Leach Ampitheater in Oshkosh, WI, scheduled for Wed, Aug 21, 2024 5:45 pm. With 14 tickets up for grabs, priced between $44.00 to $79.00 and an average price of $61.00, there's an option for every budget. Choose your ideal seat using our handy interactive seating chart.