Interesting. Lions do climb trees, that is common knowledge in the meantime. It was Lake Manyara NP in Tanzania that was famous for its tree climbing lions, and maybe some of them kind of wandered to nearby Serengeti. This picture was taken on a Safari in July 2012 in the northern part of Moru koppjes area, in Serengeti National Park.
The lioness seemed to be very relaxed and did not care for the visitors. So, all of you wildlife photographers trying to catch this scene at Manyara: with a bit of luck, Serengeti works as well..
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