I've recently enjoyed the DHC6's and DHC7's of Air Kenya into and out of Wilson and around the Mara. Loved the Twin Otter for its brutal simplicity and the Dash 7 for its brutal capability of hauling 50 souls plus luggage off a dirt strip, 5,000ft above mean sea level on a very warm day.
One of the DHC7 cabin announcements went "A welcome to passengers who joined us at Mara Musiara. Our next destination is Mara Masera. Our flight time will be 5 minutes and we will be flying at low level"