Forsyth Barr Stadium is a multi-purpose sports venue located in Dunedin, New Zealand. Opened in 2011, it is notable for being the world's first fully enclosed, naturally ventilated stadium. The stadium has a seating capacity of approximately 30,000 and hosts various events, including rugby, football, and concerts. The stadium is home to the Otago Rugby Football Union and the Dunedin City Football Club. Its unique design features a grass playing surface, which is maintained under a transparent roof, allowing natural light to reach the grass while protecting it from harsh weather conditions.