Bay of Plenty in the region. Missionary activity in the region also increased during this time. In 1853, New Zealand was subdivided into provinces, with the Bay of Plenty incorporated into Auckland Province. Conflict returned to the Bay of Plenty during the 1860s with the New Zealand Land Wars. Initially this stemmed from Tauranga iwi supporting the Waikato iwi in their conflict with the government. In retaliation, British Crown and government-allied Māori forces attacked the Tauranga iwi, including at the famous Battle of Gate Pā in 1864. Further conflict with the government arose in 1865 when German missionary Carl Völkner and interpreter James
Bay of Plenty foreign (planted) forest areas are found in the inland parts of the region. The Kaingaroa Forest is the world's largest planted forest, comprising radiata pine mainly used for timber. The bay contains numerous islands, notably the active volcano Whakaari / White Island, which lies 50 kilometres from the coast in the eastern bay. Other large islands include (from west to east) Matakana Island, Mayor Island / Tuhua, Motiti Island, and Moutohora Island. The Waimangu Geyser – to be seen 1900–1904 – erupted frequently, was the most powerful geyser of the world and killed 4 people in 1903. In the 2006