Ookapu Marae is located on the inner reaches of the Aotea Harbour, 8 kms north of Kaawhia township and close to Matakoowhai Bay. The primary hapuu for this marae are Ngaati Te Wehi and Ngaati Mahuta.
The whare tupuna is called Te Kotahitanga o Ngaati Te Wehi. Ookapu Marae connects ancestrally to Tainui waka, Karioi maunga, Aotea moana.