List of national parks of Nigeria
Parks
Table:
Park
Area km2
Established
State(s)
Notes

Chad Basin
2,258
1991
Borno, Yobe
Includes part of the Hadejia-Nguru wetlands and the Sambisa Game Reserve

Cross River
4,000
1991
Cross River
Okwangwo section and Oban section (1,906 km²)

Gashaka Gumti
6,731
1991
Taraba, Adamawa

Kainji
5,382
1979
Niger, Kwara
Includes Kainji Lake, Borgu Game Reserve and Zugurma Game Reserve

Kamuku
1,121
1999
Kaduna

Okomu
181
1999
Edo
Part of the Okomu Forest Reserve

Old Oyo
2,512
1991
Oyo, Kwara

Yankari
2,244
1962
Bauchi
Operated by the Bauchi State government

Studying the table that covers 'List of national parks of Nigeria' in the 'Parks' section, compose one sentence describing only the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.