Orman Garden is a botanical garden adjacent to Cairo University in Giza, originally created as part of the Khedival palace gardens in the 1870s and later developed by the British botanist John Ball from 1901. The garden has an extensive collection of tropical and subtropical trees, many over a century old, and remains one of the largest green spaces on the Giza side of the Nile. It's mainly used by Cairo University students and local families.
The garden is particularly good for shade and quiet in the mid-morning, when it's well below the afternoon temperature. The mature trees — mangoes, figs, palms, and various tropical species — create a genuinely different atmosphere from the rest of the city. Entry is cheap. The adjacent Cairo Zoo can be combined in a single half-day visit.