Sunscreen, hat, sunglasses, lip balm. Insect repellent (possibly tropical version, should be applied every 6-8 hours).
Clothing must be comfortable, bring long changes of clothes for the evening and early morning, t-shirt and shorts for the day, but remember to bring several changes because the red soil of the savannah can be annoying. Also remember a swimsuit because in the accommodations there is often a swimming pool and comfortable shoes (possibly old and not white to avoid the risk of staining them). Also important are essential medicines, including painkillers for common headaches, medicine for dysentery, paracetamol and eye drops for any dirt in the eyes. Adapter for ENGLISH-type power socket and power bank. Camera and, if you want to be sure to see animals even from a distance, binoculars. REMEMBER: drones are prohibited in Kenya.