Old Oyo National Park protects a broad area of savanna, woodland, rivers, and archaeological traces connected with the old Oyo Empire. It is one of the more meaningful nature-and-history excursions that can be approached from Ibadan.
Distances are large and infrastructure can be uneven, so this is not a casual city park. Travelers should arrange transport carefully, ask locally about current access, and treat the visit as a full-day or overnight undertaking.