Lake Rotomahana is a geothermal lake located in the Taupo Volcanic Zone of New Zealand's North Island. It is known for its unique thermal features, including hot springs and bubbling mud pools. The lake was formed by volcanic activity and is situated near the famous Waimangu Volcanic Valley. The lake covers an area of approximately 3.5 square kilometers and has a maximum depth of around 30 meters. It is home to various native species, including fish and birds, and is a popular destination for tourists seeking to experience its natural beauty and geothermal wonders.