Pouono Park in Vava'u offers a unique historical insight into Tonga's past. In 1839, King George Tupou I enacted the "Vava'u Code" here, marking a pivotal moment in Tongan history where he dedicated the country to God following his conversion to Christianity. This significant event is detailed on an interpretation panel along Pouono Road, making the park an essential visit for those interested in Tonga's cultural and spiritual journey. Note that the park is not usually open to the public but you can admire the monument and gardens from the roadside.