Going to Kiambethu Tea Farm was a great experience for me. It is a beautiful place for one to quickly get away for a few hours. The talks and tours were also super educational and most importantly; fun.
There is a nice little restaurant called Barneys, at the Nanyuki Airstrip. Have you ever watched planes land and take off? It's very entertaining (actually) to watch I must say. The food was lovely, and the service awesome.... and oh the company; let's just say my squad is lit (LOL).
Karuara forest has many activities for individuals or families. There's bike riding, walking trails, dog walking, jogging, picnics, and tennis. The best part of Karura Forest is the beautiful nature and lovely fresh air. It's every nature lovers heaven; lot's of trees, flowers, dirt, water, and little animals.