The published trip plan called for a trip back to the Olduvai Gorge - but our tour leader wisely stopped there on day 11, sparing us a long drive over awful roads. We spent a peaceful day around Lake Masek and adjoining lakes. Looking at satellite maps it can be seen that Lake Masek is part of the system that runs into Olduvai Gorge. This is truly the cradle of Homo Sapiens.