Chuanlong Old House Tofu Workshop. On the Chuanlong Canal in Gongguan Township stands a century-old house. Beside the rustic sign, listen to the gurgling water while enjoying fragrant handmade tofu and soy products. On the Chuanlong Canal in Gongguan Township stands a century-old house. Beside the rustic sign, listen to the gurgling water while enjoying fragrant handmade tofu and soy pudding, and spend a wonderful afternoon! The "Chuanlong Canal" flows through the entire Gongguan and Tongluo areas, running day and night for 173 years. Its living water source has become the lifeline for over 800 hectares of farmland downstream, and it is the river of life here, witnessing the history of pioneers working hard to reclaim wasteland into fertile fields. The gurgling water flows with story after story. Address: 苗栗縣公館鄉福基120號 Hours: 00:00–23:59 Miaoli