Yes, Nairobi is uniquely positioned as the only major city in the world with a national park within its borders, making a day safari very easy. Nairobi National Park offers the chance to see lions, rhinos, giraffes, and zebras against a backdrop of city skyscrapers in just 4–6 hours. For a longer day trip, you can travel to Lake Nakuru National Park (famous for flamingos and rhinos) or Hell’s Gate National Park (where you can hike or bike among wildlife), both roughly 2.5 to 3 hours away. Another popular option is the Ol Pejeta Conservancy, which is a longer drive (about 3.5 to 4 hours) but offers a high chance of seeing the "Big Five" and visiting a chimpanzee sanctuary. Most tours depart at dawn to maximize wildlife sightings before returning to the city by evening.