Bay of Plenty

Bay of Plenty (Te Moana-a-Toi)
Bay
The Bay of Plenty seen from Whakatane. The Whakatane River (foreground) is one of eight major rivers that empty into the bay.
Country	New Zealand
Part of	Pacific Ocean
Tributaries
- left	Raukokore River, Kereu River, Haparapara River Motu River, Hawai River, Waioeka River
- right	Waiotahe River, Whakatane River, Rangitaiki River Tarawera River, Kaituna River, Wairoa River Wainui River, Aongatete River, Otahu River Wentworth River, Wharekawa River
City	Tauranga
Location in the North Island of New Zealand

The Bay of Plenty, known in Māori as Te Moana-a-Toi, is a large indentation in the northern coast of New Zealand's North Island. It stretches from the Coromandel Peninsula in the west to Cape Runaway in the east, a wide stretch of some 259 km of open coastline. The Bay of Plenty Region is situated around this body of water, also incorporating several large islands in the bay.

The Māori name for the bay is Te Moana-a-Toi ("the sea of Toi"), a reference to the ancestral explorer Toi-te-huatahi, whose name was given to many prominent places in the region. Various waka arrived with settlers from eastern Polynesia around the thirteenth century: Mataatua, Nukutere, Tainui, Te Arawa and Takitimu.

The name "Bay of Plenty" originated with the English explorer James Cook during his 1769–70 exploration of New Zealand, who noted the abundant resources in the area. In the 1830s, Europeans began to settle in the area.

On 5 October 2011, the MV Rena ran aground on the Astrolabe Reef in the bay causing a large oil spill, described as New Zealand's worst ever environmental disaster.

The coastline from Waihi Beach in the west to Opape is defined as sandy coast, while the coast from Opape to Cape Runaway is rocky shore.

Sizeable harbours are located at Tauranga, Whakatane and Ohiwa. Major estuaries include Maketu, Little Waihi, Whakatane, Waiotahe and Waioeka/Otara. Eight major rivers empty into the bay from inland catchments, including Wairoa River, Kaituna, Tarawera, Rangitaiki, Whakatane, Waioeka, Motu and Raukokore rivers.