Rotorua is a city on the southern shores of Lake Rotorua from which the city takes its name, located in the Bay of Plenty Region of New Zealand's North Island. It is the seat of the Rotorua District, a territorial authority encompassing Rotorua and several other nearby towns. The majority of the Rotorua District is in the Bay of Plenty Region, but a sizeable southern section and a small western section are in the Waikato Region. Rotorua is in the heart of the North Island, 60 kilometres south of Tauranga, 80 km (50 mi) north of Taupo, 105 km (65 mi) east of Hamilton, and 230 km (140 mi) southeast of the nation's most populous city, Auckland.