Hell’s Gate National Park is one of the few places in Kenya where you can swap the safari vehicle for a bicycle or your own two feet. Named for a narrow break in the sheer basaltic cliffs, this park offers a raw, prehistoric landscape of soaring rock towers, deep gorges, and plumes of geothermal steam. It is a world of dramatic geology that famously served as the visual inspiration for Disney’s The Lion King, making it a must-visit for those who crave active exploration.